Greetings, volks. Welcome to Hohenfels Volks, THE place for our place! Old Man Winter is settling in for his long stay here in Hohenfels! I hope everyone is settling into their anticipation and excitement for the long nights and brilliant moments ahead.
It’s certainly been some time since my last post! I’ve been quite busy as usual. Branching out into large format photography has filled me with new ideas and visions. I hope to make some of the winter shots I’ve been visualizing and preparing for. Large format gives you a way of relating to the scene and subject that it’s hard to imagine without seeing it. This leads us to today’s basic topic, shooting tethered.
One distinct advantage of the digital age is the ability to hook up to a computer and see our images presented quite large. When we load our photos onto our PCs, it gives a way to see detail an ordinary 4x6 print denies us. It also gives us a tool to learn far more rapidly, by allowing us to honestly assess our images in all their glory, and with all their flaws.
But, as many folks don’t know, it also gives us a way to see those flaws prior to making our shot. It allows us to compose our scenes at a scale which invites a more involved relationship with the image. It allows us to troubleshoot our images prior to recording them, and to resolve any images that may prevent the full realization of our vision.
Previously, this has been the domain of those with large format cameras, like the 8x10 field camera or a 4x5 view camera. The composition was done on a negative sized piece of ground glass, with the image upside down and inverted. This naturally led to a slower pace and more contemplative image creation process. Combined with film costs, equipment costs, and time costs, large format photography was largely practiced by those making money from it. With the proliferation of digital cameras and the advent of sites like E-bay, large format become reasonably priced to anyone with the desire and motivation to learn the ins and outs. The format can be daunting and challenging, sometimes extremely so, but it can also be rewarding.
Now that we have DSLRs capable of producing extremely high quality images, and the capabilities of our computers, we can all practice Large Format.
Now that the background is behind us, the steps and equipment are quite simple. You most likely have the equipment you need, as it probably came with your camera. This would include a USB cable to connect to your computer, and the capture software that allows for control of your camera. If your camera didn’t come with the capture software, your manufacturer may have it at their website. If not, there are commercial options available that run from free to higher priced options. You’ll want a tripod and maybe a platform for your PC if you want to use a laptop from other that your desk. That’s it. Just start the software, and for Canon’s, select Remote Live View.
Once you’re connected, you can control everything. You can focus in the autofocus mode using the software, or in manual mode. Both ways give you a giant magnification and full control of your focus. You can control white balance and display your camera’s metering, which will allow you to control your exposure and place your values below, at, or above, neutral gray. It allows for full functionality of the camera, and can even capture directly to your hard drive. The beauty is in a few Windows hot key shortcuts, you can zoom in the live preview, making your preview as large as your monitor. How’s that for large format? Focus, DOF preview, and exposure controls as if shooting directly form the camera, and viewing from the computer, it can’t be beat. You’ll know if you have a keeper even before making the shot.
This has been around some time, just search for tethered shooting, but the first thing to learn is exposure, white balance, and how to use your camera. Once you know these things, you can move on, in ways I can’t even begin to touch upon here! Using tethered shooting will give you an appreciation for all the detail in the scene and lead to a new found way of looking at the smaller parts of a scene to see the big picture. It also saves the frustration of having to sort through the good and the bad. You’ll find yourself making fewer bad images when you shoot tethered.
It has its drawbacks. Who wants to carry a tripod, computer, and cables everywhere? Who feels like lugging extra stuff to make the picture? There are trade-offs in it, but you’ll find if you’re shooting something for your own vision, or if your doing something where there is time to set up and work that way, tethered may be your new default!
I hope this gives you some new ideas. Getting out there and shooting , tethered or un-tethered, will give you the winning shot this winter, so get started making your images now!
Please feel free to share your photos on our Faceboook page. Everyone here would love the chance to see your work! Is there anything you’d like to see here? Do you have a question? Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Showing posts with label metering. Show all posts
Showing posts with label metering. Show all posts
Tuesday, December 4, 2012
Tuesday, November 6, 2012
Creative Metering and Exposure
Greetings and welcome to Hohenfels Volks, THE place for our place! I hope everyone is getting a decent start to the week. The Hohenfels area is beautiful this time of year, as many of you know, and full of go-to places for some great shots.
Today we’re going back a little to some basics. We’re primarily going to look at metering and exposure.
We all know the basics by now, that your meter offers a combination to make the measured area fall at 18% reflectance, or neutral gray. Most of us know that by overriding that proffered setting we can take fuller control and get closer to our vision.
I’ve discussed metering and key stops before, but today we’re going to see how it can be used for maximum impact when combined with our vision.
I’ll be referring to the following photo as an example.
ISO 125, f/22, 1/2 on Ilford FP4+
I, Un-Subjugated.When we leave the I, or in this case the red, unsubjugated, a wider variety can thrive.
In the above image, both the highlights and shadows were extremely close in values, and were identical with the light shifting as it was. My initial reading was 15 c/f2 for the shadows and 30 for the highlights. The brighter leaves are red and the darker ones are green. Knowing the values were so close, with the red reading about 2/3 to a whole stop brighter, I chose a red filter to bring up the reds and decrease the greens. A red filter allows about 97% of the red light through, while only allowing about 12.5% of the blue and green. It also gives a factor of 8x or 3 stops. Throwing in the aperture decrease, I was shooting with 5 stops less available light for the greens and shadows. By adding 4 stops to their initial reading of 30c/f2, their levels were increased and the red was 2 stops over neutral. In yesterday’s shot, the same leaves and exposures were made, only using a green filter, bringing all the levels more in line with their illuminations.
This is the same shot, and levels as the image I posted yesterday. This will allow you to see how using the tools and techniques at our disposal, we can lead our image and our viewer to the desired result.
When we meter at our key stop, both for highlights and shadows, what we’re learning is the illumination of the subject. The reciprocal of our shutter speed is the amount of illumination, expressed in candles per square foot. By metering off the shadows, mid-tones, and highlights, we have a range of illuminations with which we can work. Those readings will always be the same at any key combination. For instance ISO 100 and f/10 or ISO 400 and f/20. So, we meter 100 foot candles at ISO 400, f/22. At ISO 250, we would set f/16 to get the same results. Now to place that value at somewhat higher value, for instance, we could set our shutter speed to 1/50 instead of 1/100 at f/16 ISO 250, and get a result that is lighter than neutral, by about 1 stop.
Throw in the ability to see our desired results and the steps to get them; an image can be made, not captured. We have several tools to modify the exposure we’ve selected without destroying the original image. With digital photography, shooting RAW gives you complete control. By raising your red tones, and lowering your greens and blues, a red filter can be somewhat approximated, and so on.
By combining exposure, processing, and value controls throughout the photo making session, we can bring our creative expressions to life. The first step to learn is metering and how to use that information. This little tool can be used for a record photo that leaves little to interpretation, and one for the magic of creative photography, as well. You can give voice to your thoughts without uttering a word. Using what you know, and the tools available to you, vision can be brought to life, and given a meaning according to your creativity and visualization.
I hope everyone enjoys the rest of the week and makes an image using their knowledge, tools, and vision to share with all of us! Get out and make it happen, then show us, share what you felt through your images on our Hohenfels Volks Faceboook page.
Is there anything you’d like to see here? Do you have a question? Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Today we’re going back a little to some basics. We’re primarily going to look at metering and exposure.
We all know the basics by now, that your meter offers a combination to make the measured area fall at 18% reflectance, or neutral gray. Most of us know that by overriding that proffered setting we can take fuller control and get closer to our vision.
I’ve discussed metering and key stops before, but today we’re going to see how it can be used for maximum impact when combined with our vision.
I’ll be referring to the following photo as an example.
ISO 125, f/22, 1/2 on Ilford FP4+
I, Un-Subjugated.When we leave the I, or in this case the red, unsubjugated, a wider variety can thrive.
In the above image, both the highlights and shadows were extremely close in values, and were identical with the light shifting as it was. My initial reading was 15 c/f2 for the shadows and 30 for the highlights. The brighter leaves are red and the darker ones are green. Knowing the values were so close, with the red reading about 2/3 to a whole stop brighter, I chose a red filter to bring up the reds and decrease the greens. A red filter allows about 97% of the red light through, while only allowing about 12.5% of the blue and green. It also gives a factor of 8x or 3 stops. Throwing in the aperture decrease, I was shooting with 5 stops less available light for the greens and shadows. By adding 4 stops to their initial reading of 30c/f2, their levels were increased and the red was 2 stops over neutral. In yesterday’s shot, the same leaves and exposures were made, only using a green filter, bringing all the levels more in line with their illuminations.
This is the same shot, and levels as the image I posted yesterday. This will allow you to see how using the tools and techniques at our disposal, we can lead our image and our viewer to the desired result.
When we meter at our key stop, both for highlights and shadows, what we’re learning is the illumination of the subject. The reciprocal of our shutter speed is the amount of illumination, expressed in candles per square foot. By metering off the shadows, mid-tones, and highlights, we have a range of illuminations with which we can work. Those readings will always be the same at any key combination. For instance ISO 100 and f/10 or ISO 400 and f/20. So, we meter 100 foot candles at ISO 400, f/22. At ISO 250, we would set f/16 to get the same results. Now to place that value at somewhat higher value, for instance, we could set our shutter speed to 1/50 instead of 1/100 at f/16 ISO 250, and get a result that is lighter than neutral, by about 1 stop.
Throw in the ability to see our desired results and the steps to get them; an image can be made, not captured. We have several tools to modify the exposure we’ve selected without destroying the original image. With digital photography, shooting RAW gives you complete control. By raising your red tones, and lowering your greens and blues, a red filter can be somewhat approximated, and so on.
By combining exposure, processing, and value controls throughout the photo making session, we can bring our creative expressions to life. The first step to learn is metering and how to use that information. This little tool can be used for a record photo that leaves little to interpretation, and one for the magic of creative photography, as well. You can give voice to your thoughts without uttering a word. Using what you know, and the tools available to you, vision can be brought to life, and given a meaning according to your creativity and visualization.
I hope everyone enjoys the rest of the week and makes an image using their knowledge, tools, and vision to share with all of us! Get out and make it happen, then show us, share what you felt through your images on our Hohenfels Volks Faceboook page.
Is there anything you’d like to see here? Do you have a question? Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Tuesday, July 31, 2012
Metering for Effect
Greetings, volks. Welcome to Hohenfels Volks, THE place for our place! I hope everyone managed to break away from the Olympics this weekend and get some great shots of our Hohenfels area.
Some beautiful cloudscapes this weekend started me thinking about how we meter and where we place our exposures. Of course, this led to a short post today about shooting bright scenes, or scenes with a large amount of brighter objects.
This shot was metered for the bottom of the clouds on the left. This left the bright clouds on the right a little overexposed. The values were brought down using the luminance curves in Canon's Digital Photo Pro to match my visualizing. By composing with the crenelations creating a stairstep effect and framing the castle tower, a brighter image could be created. It also brings the eye back to the tower and clouds, adding interest and depth.
The first thing we should be thinking about is our visualization. Where do we want to place our elements? For instance, if your scene contains fields, nice blue skies, and big fluffy clouds, perhaps metering for the fields will turn the sky white, and metering for the clouds will turn the fields black. Knowing where we want our elements in the range of values is the first step in putting our visualization to work.
After we’ve visually composed our image and noted the areas where significant detail must be maintained, we begin to meter. It’s generally best to make several readings from the different values within the scene, as this lets us know our range. In the above mentioned scene with the fields and clouds, we determine the sky itself to be the middle range. If we give this a +1 exposure, the sky is properly exposed, the fields are likely to be also, but the clouds will usually be overexposed. We can try to fix it on the computer, which is often difficult when the highlights are too far gone, or we can expose the clouds for +1 to +2 stops over their meter reading. This will darken the sky to a nice rich blue, and generally provide some slight underexposure in the field. The lowering of values throughout the scene also increases your overall saturation. It also gives you greater control over the chiaroscuro and play of light in your work.
Of course, none of this is useful to you if you don’t know what you want from your shot. Trying to capture the feeling you wish to share may require something else. Having this general idea, though, gives you another tool in the quest for the perfect shot.
Please feel free to share your photos on our Faceboook page. Everyone here would love the chance to see your work! Is there anything you’d like to see here? Do you have a question? Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Some beautiful cloudscapes this weekend started me thinking about how we meter and where we place our exposures. Of course, this led to a short post today about shooting bright scenes, or scenes with a large amount of brighter objects.
This shot was metered for the bottom of the clouds on the left. This left the bright clouds on the right a little overexposed. The values were brought down using the luminance curves in Canon's Digital Photo Pro to match my visualizing. By composing with the crenelations creating a stairstep effect and framing the castle tower, a brighter image could be created. It also brings the eye back to the tower and clouds, adding interest and depth.
The first thing we should be thinking about is our visualization. Where do we want to place our elements? For instance, if your scene contains fields, nice blue skies, and big fluffy clouds, perhaps metering for the fields will turn the sky white, and metering for the clouds will turn the fields black. Knowing where we want our elements in the range of values is the first step in putting our visualization to work.
After we’ve visually composed our image and noted the areas where significant detail must be maintained, we begin to meter. It’s generally best to make several readings from the different values within the scene, as this lets us know our range. In the above mentioned scene with the fields and clouds, we determine the sky itself to be the middle range. If we give this a +1 exposure, the sky is properly exposed, the fields are likely to be also, but the clouds will usually be overexposed. We can try to fix it on the computer, which is often difficult when the highlights are too far gone, or we can expose the clouds for +1 to +2 stops over their meter reading. This will darken the sky to a nice rich blue, and generally provide some slight underexposure in the field. The lowering of values throughout the scene also increases your overall saturation. It also gives you greater control over the chiaroscuro and play of light in your work.
Of course, none of this is useful to you if you don’t know what you want from your shot. Trying to capture the feeling you wish to share may require something else. Having this general idea, though, gives you another tool in the quest for the perfect shot.
Please feel free to share your photos on our Faceboook page. Everyone here would love the chance to see your work! Is there anything you’d like to see here? Do you have a question? Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Monday, July 16, 2012
Shooting the Spires
Greetings, volks. Welcome to Hohenfels Volks, THE place for our place! Welcome to another Monday. I hope your week is off to a great start.
Yesterday I posted the following photo, along with a message that I would post more about it tonight.
ISO 125, f/16, 1/125, 85mm.
This shot is straight from the camera. I applied some sharpening to retain detail during the resize, but no other edits were made. By placing the spires to the right, and using the clouds to create interest in otherwise negative space, mood is created and enhanced.
This photo was made in Regensburg on Saturday. Dachauplatz has a nice garage, located to be within a few minutes walk to just about anywhere in the old part of town. Parking on the roof and scanning the other roofs, this scene just begged to be photographed. The sky was stormy looking, and clouds appeared ominously ready to ruin our afternoon. I metered for the bright clouds and added about 2/3-stop exposure. This left the dark clouds about 1 and 1/3 stop below the meter reading on my 7D.
Composing to minimize intrusion of the garage and several other out of place structures, I made 2 shots about 1/3 stop apart. The mood of the image captured the light, sky, and feeling of that dreadful appearing scene.
After getting the image onto the computer, I decreased the exposure 1/2 stop, brought in the shadow levels to just right of the edge, the highlight levels a slight amount, set contrast to 3, and shadows to 2. I set the color temperature to 3500K, and adjusted the curves for maximum impact. Under the RGB tab, I reduced saturation to 0 and tweaked the curves again to create a balanced scene, resulting in the following B&W image. I applied maximum sharpening on both tabs, and felt pretty good about this image.
The rest of that afternoon was incredibly nice, the weather was on our side, we enjoyed some nice family time, and of course, some ice cream at Eis am Dom, in the Domplatz. Of course, no visit to Regensburg can be complete without a visit to Fotohaus Zacharias. I got to see their latest offerings in the old camera department and pick up some 120 film. They always have so much to choose from. I get lost dreaming about the cameras! I saw a couple old time large format cameras that were incredible. It’s definitely a place to spend a couple hours just looking!
Here's the finished version. It looks old fashioned in monochrome, and the mood is enhanced without color to distract. Converting images can often be a very simple process when you shoot for a mood.
Well, that about wraps it up for today, but I’ll be back with some more photos from the trip and techniques to get that B&W image you visualized!
Did you get any exciting images this weekend? If so, feel free to share them on our Faceboook page. Is there anything you’d like to see here? Do you have a question? Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Yesterday I posted the following photo, along with a message that I would post more about it tonight.
ISO 125, f/16, 1/125, 85mm.
This shot is straight from the camera. I applied some sharpening to retain detail during the resize, but no other edits were made. By placing the spires to the right, and using the clouds to create interest in otherwise negative space, mood is created and enhanced.
This photo was made in Regensburg on Saturday. Dachauplatz has a nice garage, located to be within a few minutes walk to just about anywhere in the old part of town. Parking on the roof and scanning the other roofs, this scene just begged to be photographed. The sky was stormy looking, and clouds appeared ominously ready to ruin our afternoon. I metered for the bright clouds and added about 2/3-stop exposure. This left the dark clouds about 1 and 1/3 stop below the meter reading on my 7D.
Composing to minimize intrusion of the garage and several other out of place structures, I made 2 shots about 1/3 stop apart. The mood of the image captured the light, sky, and feeling of that dreadful appearing scene.
After getting the image onto the computer, I decreased the exposure 1/2 stop, brought in the shadow levels to just right of the edge, the highlight levels a slight amount, set contrast to 3, and shadows to 2. I set the color temperature to 3500K, and adjusted the curves for maximum impact. Under the RGB tab, I reduced saturation to 0 and tweaked the curves again to create a balanced scene, resulting in the following B&W image. I applied maximum sharpening on both tabs, and felt pretty good about this image.
The rest of that afternoon was incredibly nice, the weather was on our side, we enjoyed some nice family time, and of course, some ice cream at Eis am Dom, in the Domplatz. Of course, no visit to Regensburg can be complete without a visit to Fotohaus Zacharias. I got to see their latest offerings in the old camera department and pick up some 120 film. They always have so much to choose from. I get lost dreaming about the cameras! I saw a couple old time large format cameras that were incredible. It’s definitely a place to spend a couple hours just looking!
Here's the finished version. It looks old fashioned in monochrome, and the mood is enhanced without color to distract. Converting images can often be a very simple process when you shoot for a mood.
Well, that about wraps it up for today, but I’ll be back with some more photos from the trip and techniques to get that B&W image you visualized!
Did you get any exciting images this weekend? If so, feel free to share them on our Faceboook page. Is there anything you’d like to see here? Do you have a question? Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Thursday, May 10, 2012
Luminance Values and Exposure
Greetings, volks. Welcome to Hohenfels Volks, THE place for our place! Spring, being upon us here in Hohenfels, is ripe with opportunities for our craft. Looking around, the trees are bright and clean, the flowers are bursting with color, and the Germany is waking up to a wonderful summer ahead.
Today’s post, delayed by unfortunate occurrences, is about luminance values, and how we can record, refer to, and use those values to improve our image. There will be some math here, but nothing major.
The first thing we need to discuss is the exposure formula. Ansel Adams described it as being the reciprocal of the luminance at a speeds key stop. The key stop for any speed is the square root of the speed. Here is a list of most speed/stop combinations.
Speed Key Stop
100 10
125 11
160 12
250 16
320 17
400 20
480/500 22
620 25
800 28
1000 32
I began the table at ISO 100 and ended at ISO 1000. ISO 100 is the lowest most consumer cameras go, and f/32 is about as high as most consumer lenses get today.
By setting your camera to any of the pairs in the table, you can read the luminance of your metered object, measured in candles/square foot, or c/ft2. For instance at ISO 125, f/11, metering 1/125, then the luminance value is 125 c/ft2. If your meter shows 30 seconds, then the luminance is 1/30 c/ft2. That will put you at 18%, or neutral gray reference values. This is what I refer to as M, or an M exposure.
When photographing normal scenes, we often encounter a scale of values that for any given exposure will run from approximately M-5 and lower to M+5 or higher. By learning to look at luminance values as described above, you learn to tame that range, creating an image that will make you justifiably proud.
An example of exposing for your luminance reading is when you meter the clear sky; you should read about f/11, ISO125, 1/300. This will put your sky into the range of 18% reflectance. We know that a clear Northern sky should fall about M+1, which means we should expose for the sky at f/11, ISO125, 1/150. Of course, this goes back to place and fall exposures. You must decide the key elements within your scene and where they should be placed. Once this exposure and placement is determined, all other values fall where their luminance levels impact your sensor. Knowing these values will help you determine where you wish to place elements and where your remaining elements will fall.
Even metering clouds, you will find a range of luminance values that may run from 200 c/ft2 to 1000 c/ft2. By meter the brightest part, 1000 c/ft2, then adding 3 stops, you bring your 200 c/ft2 up to nearly M+1 ½ in the exposure range, which is slightly brighter than the surrounding blue sky, and significantly darker than the brights in the clouds. Your brights will print out with slight tonal variations, and darker areas will have adequate or better textural ranges. You also bring areas metering at 50 c/ft2 up to the equivalent exposure of 400 c/ft2. These equivalent values are in relation to your original metering from the bright part of the clouds.
Recording your luminance values across the range of your scene will help you learn to recognize values, and expose with more confidence. It will also help in editing your images and preparing them for either printing or display. I would suggest metering across the range of M-4 to M+4 after determining your priorities, and noting the results. Even if you’re shooting at some combination not listed above, take the luminance readings using a combination. After reading the values, switch to your desired settings, compose, and make your image. Values for M+ and M- can be extrapolated by halving or doubling the values obtained with your meter. This is less accurate, but still of considerable value in perfecting your images.
Another great advantage of knowing your luminance and place values, is the ability to tell anyone about your exposure without giving the ISO, f/stop, EI, shutter speed, and so on. Tell them you metered this at 250 c/ft2, and gave M+1 to get the exposure where you wanted it. Regardless of your settings, they will know that to get that exposure from 250 c/ft2, then they give M+1 at whatever aperture and speed they desire, for instance ISO 125, f/8, 1/250 or ISO 400, f/5.6, 1/1600. Both will give the same results, and use the same values, 250 c/ft2 +1 stop, and make exposing a scene more consistent. It’s also useful when referring to edits performed. Taking the last example, you may have shot at M+1, and then edited it to M to decrease contrast. In this case, you can say this was shot at 250 c/ft2 +1 stop, then edited to M for the final effect. This will help others understand and help you remember your shots without having to know every little bit of detail.
There are other ways of expressing luminance, for instance EV or c/m2, or lumens, and as long as you find a consistent method of evaluating and expressing that exposure, your images will be consistent with your vision. Don’t get hung up on what I use, try it and if it doesn’t work, try something else. You’ll still have a working system, and you’ll still be enjoying what we love to do!
Time to get out and do some shooting, I hope you’ll be out today getting your shots in, too!
I’m looking forward to seeing your results and hearing from you. Let me know what you think and how you’re using your camera! Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Today’s post, delayed by unfortunate occurrences, is about luminance values, and how we can record, refer to, and use those values to improve our image. There will be some math here, but nothing major.
The first thing we need to discuss is the exposure formula. Ansel Adams described it as being the reciprocal of the luminance at a speeds key stop. The key stop for any speed is the square root of the speed. Here is a list of most speed/stop combinations.
Speed Key Stop
100 10
125 11
160 12
250 16
320 17
400 20
480/500 22
620 25
800 28
1000 32
I began the table at ISO 100 and ended at ISO 1000. ISO 100 is the lowest most consumer cameras go, and f/32 is about as high as most consumer lenses get today.
By setting your camera to any of the pairs in the table, you can read the luminance of your metered object, measured in candles/square foot, or c/ft2. For instance at ISO 125, f/11, metering 1/125, then the luminance value is 125 c/ft2. If your meter shows 30 seconds, then the luminance is 1/30 c/ft2. That will put you at 18%, or neutral gray reference values. This is what I refer to as M, or an M exposure.
When photographing normal scenes, we often encounter a scale of values that for any given exposure will run from approximately M-5 and lower to M+5 or higher. By learning to look at luminance values as described above, you learn to tame that range, creating an image that will make you justifiably proud.
An example of exposing for your luminance reading is when you meter the clear sky; you should read about f/11, ISO125, 1/300. This will put your sky into the range of 18% reflectance. We know that a clear Northern sky should fall about M+1, which means we should expose for the sky at f/11, ISO125, 1/150. Of course, this goes back to place and fall exposures. You must decide the key elements within your scene and where they should be placed. Once this exposure and placement is determined, all other values fall where their luminance levels impact your sensor. Knowing these values will help you determine where you wish to place elements and where your remaining elements will fall.
Even metering clouds, you will find a range of luminance values that may run from 200 c/ft2 to 1000 c/ft2. By meter the brightest part, 1000 c/ft2, then adding 3 stops, you bring your 200 c/ft2 up to nearly M+1 ½ in the exposure range, which is slightly brighter than the surrounding blue sky, and significantly darker than the brights in the clouds. Your brights will print out with slight tonal variations, and darker areas will have adequate or better textural ranges. You also bring areas metering at 50 c/ft2 up to the equivalent exposure of 400 c/ft2. These equivalent values are in relation to your original metering from the bright part of the clouds.
Recording your luminance values across the range of your scene will help you learn to recognize values, and expose with more confidence. It will also help in editing your images and preparing them for either printing or display. I would suggest metering across the range of M-4 to M+4 after determining your priorities, and noting the results. Even if you’re shooting at some combination not listed above, take the luminance readings using a combination. After reading the values, switch to your desired settings, compose, and make your image. Values for M+ and M- can be extrapolated by halving or doubling the values obtained with your meter. This is less accurate, but still of considerable value in perfecting your images.
Another great advantage of knowing your luminance and place values, is the ability to tell anyone about your exposure without giving the ISO, f/stop, EI, shutter speed, and so on. Tell them you metered this at 250 c/ft2, and gave M+1 to get the exposure where you wanted it. Regardless of your settings, they will know that to get that exposure from 250 c/ft2, then they give M+1 at whatever aperture and speed they desire, for instance ISO 125, f/8, 1/250 or ISO 400, f/5.6, 1/1600. Both will give the same results, and use the same values, 250 c/ft2 +1 stop, and make exposing a scene more consistent. It’s also useful when referring to edits performed. Taking the last example, you may have shot at M+1, and then edited it to M to decrease contrast. In this case, you can say this was shot at 250 c/ft2 +1 stop, then edited to M for the final effect. This will help others understand and help you remember your shots without having to know every little bit of detail.
There are other ways of expressing luminance, for instance EV or c/m2, or lumens, and as long as you find a consistent method of evaluating and expressing that exposure, your images will be consistent with your vision. Don’t get hung up on what I use, try it and if it doesn’t work, try something else. You’ll still have a working system, and you’ll still be enjoying what we love to do!
Time to get out and do some shooting, I hope you’ll be out today getting your shots in, too!
I’m looking forward to seeing your results and hearing from you. Let me know what you think and how you’re using your camera! Share your thoughts here or at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Tuesday, April 10, 2012
Ride Along Shot: High...
Greetings, volks. Welcome to Hohenfels Volks, THE place for our place! Welcoming Tuesday, Hohenfels finds a nice day breaking out and greeting us back.
Let’s visit Regensburg for another ride along shot. This time we’re going to look at a shot taken on film in the old part of town.
Here’s the image.
ISO 100 Agfa APX100, f/8, 1/50, 50mm
A shop window in Regensburg's old town.
This was taken outside one of the many little shops lining the square, and not far from the Dom, or cathedral. I was immediately attracted to the material, old boxes, wreaths, and some cool roses. Throw in the bottles and glassware in the window, and it really seemed like a “must have” shot.
Metering from the white portion in the bottom right window gave too little exposure, so I shot at M+3 and developed for N. This left white zone to about M+3 and leaves a nice tonal range. This also gives us a nice high key image, with a very suitable contrast, and detail in the brightest parts. The reflections in the windows could have been removed with a CP filter, but I would lose the high key effect of the light reflecting around the scene.
The meter gave me f/16 at 1/100. I think this was shot on Agfa APX100 film. I shot with a 50mm f/1.8 prime, as I did the entire day. The final exposure was f/8 and 1/50, with an ISO of 100. I didn’t want to go slower, as the old cameras had no IS, and any wider would have left the DOF inadequate to express what I had envisioned. The sun was out, it was mid-day, and the weather had warmed up a little that day. It was still snowing back in Hohenfels, which was a bit surprising as I got off the train.
After scanning the negative, editing was most certainly required. The sharpness was quite nearly gone, the contrast had come down, and the whites were nearly blown. By applying curves in an inverse S and adjusting the levels to bring down the shadows, and raise the midtones and highlights, I was nearly complete. The next step was to reduce noise and apply an unsharp mask at about 3px radius, 90 strength, and 2 clipping.
The final image grew on me. At first, being satisfied with the image, it was ok. After editing and revisiting the image several times, I realize it had become something I really liked. It showed that the system of metering for the highlights when you plan an image to be presented digitally, can lead to some really nice results.
By exposing on the plus side, it brought out some detail in the shadows, allowing just enough to bring the eye to them in the middle of the brights. Our eyes are generally drawn to the brightest part of a scene first, which is why we often keep our subject 1/3 to 1 stop brighter that the surrounding. In cases like this, it sets our darks apart and brings focus to the play between shadow and light.
I hope I haven’t bored you too much! Enjoy the rest of a lovely evening, maybe using this time to get some blue or golden hour shots in. Take care and keep shooting.
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Let’s visit Regensburg for another ride along shot. This time we’re going to look at a shot taken on film in the old part of town.
Here’s the image.
ISO 100 Agfa APX100, f/8, 1/50, 50mm
A shop window in Regensburg's old town.
This was taken outside one of the many little shops lining the square, and not far from the Dom, or cathedral. I was immediately attracted to the material, old boxes, wreaths, and some cool roses. Throw in the bottles and glassware in the window, and it really seemed like a “must have” shot.
Metering from the white portion in the bottom right window gave too little exposure, so I shot at M+3 and developed for N. This left white zone to about M+3 and leaves a nice tonal range. This also gives us a nice high key image, with a very suitable contrast, and detail in the brightest parts. The reflections in the windows could have been removed with a CP filter, but I would lose the high key effect of the light reflecting around the scene.
The meter gave me f/16 at 1/100. I think this was shot on Agfa APX100 film. I shot with a 50mm f/1.8 prime, as I did the entire day. The final exposure was f/8 and 1/50, with an ISO of 100. I didn’t want to go slower, as the old cameras had no IS, and any wider would have left the DOF inadequate to express what I had envisioned. The sun was out, it was mid-day, and the weather had warmed up a little that day. It was still snowing back in Hohenfels, which was a bit surprising as I got off the train.
After scanning the negative, editing was most certainly required. The sharpness was quite nearly gone, the contrast had come down, and the whites were nearly blown. By applying curves in an inverse S and adjusting the levels to bring down the shadows, and raise the midtones and highlights, I was nearly complete. The next step was to reduce noise and apply an unsharp mask at about 3px radius, 90 strength, and 2 clipping.
The final image grew on me. At first, being satisfied with the image, it was ok. After editing and revisiting the image several times, I realize it had become something I really liked. It showed that the system of metering for the highlights when you plan an image to be presented digitally, can lead to some really nice results.
By exposing on the plus side, it brought out some detail in the shadows, allowing just enough to bring the eye to them in the middle of the brights. Our eyes are generally drawn to the brightest part of a scene first, which is why we often keep our subject 1/3 to 1 stop brighter that the surrounding. In cases like this, it sets our darks apart and brings focus to the play between shadow and light.
I hope I haven’t bored you too much! Enjoy the rest of a lovely evening, maybe using this time to get some blue or golden hour shots in. Take care and keep shooting.
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Wednesday, March 21, 2012
Shot Records
Greetings, volks. Welcome to Hohenfels Volks, THE place for our place! The wonderful weather has given rise to many photographic opportunities; I hope you’ve taken advantage of it to create some art.
Today we’re going to discuss the importance if shot records. No… not a transcript of your vaccinations. We’re going to talk about recording information about your shots as a learning tool.
A sample shot record
In the above shot, you have fields for all the important information. If you remember in a previous post, we discussed the exposure formula. If you recall, your shutter speed should be the reciprocal of the luminance in foot-candles, at your key stop. Your key stop is the square root of your ISO, or the nearest stop to it. For ISO 100, it’s f/10, ISO 125 it’s f/11, ISO 400 it’s f/20 and so on. In the sample record, we see that shot 3 was ISO 125, metered at f/11. At our mid-tones, we metered 1/200, which means we have 200 foot-candles in the middle of the scale. Notice that trying to keep the middle values properly exposed, we changed to f/16 at 1/100, which gives us the same exposure, but more DOF.
By tracking your shots with something similar, you can keep track of what levels you want to record at the desired exposures and refer back to it once your images are on the computer. Another nice thing about it is the ability to recall where and when you took a shot.
By recording your meter readings, you know how to move your image areas to the desired exposure, according to your vision. In the same example, we see the shadows read 1/25 at f/11. That would expose for 18% gray, as we all know by now. By stopping down 2 stops, say to 1/100, we keep our texture in the shadow areas of the image, while allowing our gray to move up to 18% +1 stop, giving a brighter overall appearance to our image and creating a bit of glow about our middle values. This is especially true when they are surrounded by slightly darker tones, and an even, soft light.
The simple fact is that shot records help us learn, as we examine our images and review our settings, we see how to improve our exposures. We also see how to create better lighting and impact by changing values. I am often remiss in keeping records of my settings as I take the shot, but have a form that I use taken from Ansel Adams’s book, The Negative. It uses zones and luminance values, and includes details on development and the like.
As we move through the phases on our journey toward crafting and making the perfect photo, we can see where we’ve been, and where we’re headed if we keep records. In today’s digital age, EXIF gives us our ISO, f/stop, shutter speed, and other information. The things it can’t give us are our luminance values, meter readings for other than middle gray, and it certainly can’t tell us the real subject of the shot.
That’s enough for today. I hope everyone has the chance to work on crafting their images and creating their masterpiece! Just remember to record the details. Enjoy the rest of your week!
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Today we’re going to discuss the importance if shot records. No… not a transcript of your vaccinations. We’re going to talk about recording information about your shots as a learning tool.
A sample shot record
In the above shot, you have fields for all the important information. If you remember in a previous post, we discussed the exposure formula. If you recall, your shutter speed should be the reciprocal of the luminance in foot-candles, at your key stop. Your key stop is the square root of your ISO, or the nearest stop to it. For ISO 100, it’s f/10, ISO 125 it’s f/11, ISO 400 it’s f/20 and so on. In the sample record, we see that shot 3 was ISO 125, metered at f/11. At our mid-tones, we metered 1/200, which means we have 200 foot-candles in the middle of the scale. Notice that trying to keep the middle values properly exposed, we changed to f/16 at 1/100, which gives us the same exposure, but more DOF.
By tracking your shots with something similar, you can keep track of what levels you want to record at the desired exposures and refer back to it once your images are on the computer. Another nice thing about it is the ability to recall where and when you took a shot.
By recording your meter readings, you know how to move your image areas to the desired exposure, according to your vision. In the same example, we see the shadows read 1/25 at f/11. That would expose for 18% gray, as we all know by now. By stopping down 2 stops, say to 1/100, we keep our texture in the shadow areas of the image, while allowing our gray to move up to 18% +1 stop, giving a brighter overall appearance to our image and creating a bit of glow about our middle values. This is especially true when they are surrounded by slightly darker tones, and an even, soft light.
The simple fact is that shot records help us learn, as we examine our images and review our settings, we see how to improve our exposures. We also see how to create better lighting and impact by changing values. I am often remiss in keeping records of my settings as I take the shot, but have a form that I use taken from Ansel Adams’s book, The Negative. It uses zones and luminance values, and includes details on development and the like.
As we move through the phases on our journey toward crafting and making the perfect photo, we can see where we’ve been, and where we’re headed if we keep records. In today’s digital age, EXIF gives us our ISO, f/stop, shutter speed, and other information. The things it can’t give us are our luminance values, meter readings for other than middle gray, and it certainly can’t tell us the real subject of the shot.
That’s enough for today. I hope everyone has the chance to work on crafting their images and creating their masterpiece! Just remember to record the details. Enjoy the rest of your week!
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Friday, March 9, 2012
Ride Along: Golden Sky
Greetings, volks. Welcome to Hohenfels Volks, THE place for our place!
Today we’re going on another ride along. This one isn’t too far from home, so we’ll keep it short.
While exploring the backside of Hohenfels Sunday, I stumbled upon this scene and knew it was something I wanted to keep.
ISO 400, f/22, 1/50, 35mm, Canon EOS 7D
The sun dipping slowly toward night's rest and renewal.
Going over the hill from Hohenfels proper toward Raitenbuch, you come across a small country lane meandering through the fields. Having been down this road before, I knew there were some nice scenics waiting to reward the one bringing them home. There is a tiny little chapel between 2 giant trees there, with some magnificent views of the hills around.
The shot was easy to visualize, I came up with several in fact. Composition was envisioned to include the colors all around as one the key elements. The sky was partly cloudy, with some nice golden glow from the sun hanging around the think veneer of sheeted clouds, and a nice blue in the areas without cloud cover.
I arrived moments before the color really started coming out. I took several shots, hoping to see something I could work with. I included the trees and the chapel in several, but liked this one for matching the closest to what I visualized.
I metered off the tree with the Gossen Sixtomat, at ISO 400. Giving the tree a –2-stop exposure from the meter would have washed out the sky and left the color flat and a bit comical. Metering the tree for –3 stops and the grass for about –2 stops from middle gray, meant I could shoot at f/22, which was part of getting the sun to streak in a nice little starburst. I was also able to shoot at 1/50, which limited the streaking to just a couple rays coming lightly over the hills in the distance through the clouds.
Getting it into Canon DPP, or the digital darkroom, added some magic. Canon has some “Picture Styles” for their application that come standard, allowing for the most common edits to color and contrast to be quickly applied. My first thought was Landscape, but that left the gold too vague and muddled. Having downloaded several other styles from Canon’s site, I settled on Autumn Hues for the picture style. This softened the contrast between the sun and the hills; it also made for some nice separation of the golds, oranges, and reds in the sky. I adjusted my levels, crushing them in some for clarity.
After that, I set the color temperature to about 6000K, which brought the color in line with the lighting hues. Increasing the contrast to +1 and the shadows to +2 added to the glow around the hills and tree, while allowing the levels to hold up throughout the image, including the separation in the distant hills. The last adjustment was to take saturation down –1 and sharpen.
The car coming up the road in the middle ground adds a nice little reference point for the viewer to pause. That was a lucky little bit of happenstance. I liked the lights as he was approaching and shot quickly to include his headlights. This photo captures what I visualized, and expresses the joy one gets when out looking for shots, especially when you find one that works for your vision. Shooting with a vision can make for some interesting stuff, knowing what tools you have at your disposal to make your vision a reality makes easier work of it!
Check out Canon’s site and download some of their picture styles. You’ll see some stuff that probably doesn’t appeal to you, at least I did, but you’ll also find something that does. I’m certain Nikon and other companies have something similar, if not, you can make your own in whatever app is your digital darkroom! Exposure and visualization start your image on its journey; your level controls and tools in software bring it home. Using them all together can make something that brings others to that same place with you!
Take care and enjoy your day!
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Today we’re going on another ride along. This one isn’t too far from home, so we’ll keep it short.
While exploring the backside of Hohenfels Sunday, I stumbled upon this scene and knew it was something I wanted to keep.
ISO 400, f/22, 1/50, 35mm, Canon EOS 7D
The sun dipping slowly toward night's rest and renewal.
Going over the hill from Hohenfels proper toward Raitenbuch, you come across a small country lane meandering through the fields. Having been down this road before, I knew there were some nice scenics waiting to reward the one bringing them home. There is a tiny little chapel between 2 giant trees there, with some magnificent views of the hills around.
The shot was easy to visualize, I came up with several in fact. Composition was envisioned to include the colors all around as one the key elements. The sky was partly cloudy, with some nice golden glow from the sun hanging around the think veneer of sheeted clouds, and a nice blue in the areas without cloud cover.
I arrived moments before the color really started coming out. I took several shots, hoping to see something I could work with. I included the trees and the chapel in several, but liked this one for matching the closest to what I visualized.
I metered off the tree with the Gossen Sixtomat, at ISO 400. Giving the tree a –2-stop exposure from the meter would have washed out the sky and left the color flat and a bit comical. Metering the tree for –3 stops and the grass for about –2 stops from middle gray, meant I could shoot at f/22, which was part of getting the sun to streak in a nice little starburst. I was also able to shoot at 1/50, which limited the streaking to just a couple rays coming lightly over the hills in the distance through the clouds.
Getting it into Canon DPP, or the digital darkroom, added some magic. Canon has some “Picture Styles” for their application that come standard, allowing for the most common edits to color and contrast to be quickly applied. My first thought was Landscape, but that left the gold too vague and muddled. Having downloaded several other styles from Canon’s site, I settled on Autumn Hues for the picture style. This softened the contrast between the sun and the hills; it also made for some nice separation of the golds, oranges, and reds in the sky. I adjusted my levels, crushing them in some for clarity.
After that, I set the color temperature to about 6000K, which brought the color in line with the lighting hues. Increasing the contrast to +1 and the shadows to +2 added to the glow around the hills and tree, while allowing the levels to hold up throughout the image, including the separation in the distant hills. The last adjustment was to take saturation down –1 and sharpen.
The car coming up the road in the middle ground adds a nice little reference point for the viewer to pause. That was a lucky little bit of happenstance. I liked the lights as he was approaching and shot quickly to include his headlights. This photo captures what I visualized, and expresses the joy one gets when out looking for shots, especially when you find one that works for your vision. Shooting with a vision can make for some interesting stuff, knowing what tools you have at your disposal to make your vision a reality makes easier work of it!
Check out Canon’s site and download some of their picture styles. You’ll see some stuff that probably doesn’t appeal to you, at least I did, but you’ll also find something that does. I’m certain Nikon and other companies have something similar, if not, you can make your own in whatever app is your digital darkroom! Exposure and visualization start your image on its journey; your level controls and tools in software bring it home. Using them all together can make something that brings others to that same place with you!
Take care and enjoy your day!
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Wednesday, March 7, 2012
Ride Along Shot- Braustuberl
Greetings, volks. Welcome to Hohenfels Volks, THE place for our place! Another beautiful day left us feeling nice here in Hohenfels.
Today we’re packing up some film and going shooting in Parsberg. That means it’s time for another Ride Along shot.
ISO 400, f/8, 1/50, Zeiss Ikon Ikoflex I, 75mm lens
Ivy at the Braustuberl in Parsberg
I used a mid ‘40s Zeiss Ikon Ikoflex I TLR, with Ilford’s 120 HP5+ film. This film is ISO 400, but can be pushed to 1600, giving it wide exposure latitude. The medium format 120 film combined with the camera’s 1X1 aspect ratio produces biggish 6cmX6cm negatives, which allows for nice print sizes.
I was in Parsberg picking up some film, developer, and color prints from our day trip to Bamberg with some wonderful friends. I made sure to have my camera and look for shots that might make nice prints. The combination of ivy and the rest of the scene set me thinking about how to compose a photo using the elements I desired.
The first step was to visualize what I wanted to see in the final image. I knew I wanted the “Braustuberl” sign and both lanterns. I also wanted to make the ivy a nice part of the scene. How did I want to convey the image? What parts needed detail and how much detail led to the process of putting together the final composition.
Knowing that I wanted detail in the lanterns, enough to show the shadows cast by the lantern tops, meant that they had to be placed about 3 stops down from middle gray. The leaves needed more luminance, so had to be placed about 2 stops down. Remember, when dealing with your shadows, 2 stops down will give you variations in tone, but no texture, and 3 will give you texture and an inkling of nice detail.
Metering off the ivy from about 1 foot away, gave me f/16 at 1/5 second. Metering off the walkway in the lower right for middle gray gave me f/16 at 1/125. Metering from the lanterns gave me ½ at f/16. The final shot was f/8 at 1/50 second. This moved everything up 1 stop above where I wanted it to allow for experimenting with compensating development.
Developing was done for N+1/3 in pre-depleted Tetenal Ultrafin 1+30. The times were 30 seconds of initial inversion agitation, with 4-minute stand cycles followed by 15 seconds inversion agitation. Total developing time was 20 minutes followed by the usual washing, fixing, and a German Jet dry to prevent spots. The film was hung up to dry for about 4 hours before cutting and scanned the next day.
The developing and exposure method allows the developer to deplete rapidly at the highlights, limiting the action there, while allowing more action on the shadow details. It lowers contrast and can give shadows a luminosity that makes them stand out more than just being black.
After scanning, I brought in the levels some, adjusted the curves for a tiny inverted S, and applied sharpening. It was scanned at 4800 DPI and resized to 800x800 at 300 DPI for the web, it won’t print nicely at all at that resolution, but I have the negative and the original file for that. The beauty of the scanning and editing on the computer is that it allows us to revisit our original and edit it multiple ways and times until we are satisfied with the match.
The meter I used was an old Gossen Sixtomat from the 1960s. This meter has a 30-degree field of view, so I had to get close and cup the sides to get the correct reading for the areas that were being measured. The digital camera would have made it easier with its 7-degree field in spot mode. I probably could have gotten the shot in half the time, but doing the old fashioned way was actually quite nice and reinforced what I’ve been learning.
Well, that’s it for this ride. I hope everyone has a great week and gets some photo time!
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Today we’re packing up some film and going shooting in Parsberg. That means it’s time for another Ride Along shot.
ISO 400, f/8, 1/50, Zeiss Ikon Ikoflex I, 75mm lens
Ivy at the Braustuberl in Parsberg
I used a mid ‘40s Zeiss Ikon Ikoflex I TLR, with Ilford’s 120 HP5+ film. This film is ISO 400, but can be pushed to 1600, giving it wide exposure latitude. The medium format 120 film combined with the camera’s 1X1 aspect ratio produces biggish 6cmX6cm negatives, which allows for nice print sizes.
I was in Parsberg picking up some film, developer, and color prints from our day trip to Bamberg with some wonderful friends. I made sure to have my camera and look for shots that might make nice prints. The combination of ivy and the rest of the scene set me thinking about how to compose a photo using the elements I desired.
The first step was to visualize what I wanted to see in the final image. I knew I wanted the “Braustuberl” sign and both lanterns. I also wanted to make the ivy a nice part of the scene. How did I want to convey the image? What parts needed detail and how much detail led to the process of putting together the final composition.
Knowing that I wanted detail in the lanterns, enough to show the shadows cast by the lantern tops, meant that they had to be placed about 3 stops down from middle gray. The leaves needed more luminance, so had to be placed about 2 stops down. Remember, when dealing with your shadows, 2 stops down will give you variations in tone, but no texture, and 3 will give you texture and an inkling of nice detail.
Metering off the ivy from about 1 foot away, gave me f/16 at 1/5 second. Metering off the walkway in the lower right for middle gray gave me f/16 at 1/125. Metering from the lanterns gave me ½ at f/16. The final shot was f/8 at 1/50 second. This moved everything up 1 stop above where I wanted it to allow for experimenting with compensating development.
Developing was done for N+1/3 in pre-depleted Tetenal Ultrafin 1+30. The times were 30 seconds of initial inversion agitation, with 4-minute stand cycles followed by 15 seconds inversion agitation. Total developing time was 20 minutes followed by the usual washing, fixing, and a German Jet dry to prevent spots. The film was hung up to dry for about 4 hours before cutting and scanned the next day.
The developing and exposure method allows the developer to deplete rapidly at the highlights, limiting the action there, while allowing more action on the shadow details. It lowers contrast and can give shadows a luminosity that makes them stand out more than just being black.
After scanning, I brought in the levels some, adjusted the curves for a tiny inverted S, and applied sharpening. It was scanned at 4800 DPI and resized to 800x800 at 300 DPI for the web, it won’t print nicely at all at that resolution, but I have the negative and the original file for that. The beauty of the scanning and editing on the computer is that it allows us to revisit our original and edit it multiple ways and times until we are satisfied with the match.
The meter I used was an old Gossen Sixtomat from the 1960s. This meter has a 30-degree field of view, so I had to get close and cup the sides to get the correct reading for the areas that were being measured. The digital camera would have made it easier with its 7-degree field in spot mode. I probably could have gotten the shot in half the time, but doing the old fashioned way was actually quite nice and reinforced what I’ve been learning.
Well, that’s it for this ride. I hope everyone has a great week and gets some photo time!
Don’t forget to post any of your images you’d like to see here at the Hohenfels Volks Facebook page. Of course, commenting on both Facebook and here is always appreciated, too! Don't forget, we're on Google+, too!
Wednesday, November 16, 2011
Gear Day- Pop Goes the...
Greetings, Hohenfels, welcome to Hohenfels Volks, THE place for our place and our Volks. Another day, trees covered in white and ready for the icy grip of winter, closes around us.
Today we’re going to talk about flash. Learning to use flash is one of the major steps you should take in getting your photos gallery ready.
Today’s electronic flashes work amazingly well and can put a great deal of light right where you need it. The secret to using flash to get the right exposure is knowing how to meter and knowing how to balance your lighting.
First, let’s talk about several terms and features of an average flash.
The first term to know is Guide Number or GN. This is an indication of your flash’s power. It means your flash can provide light up to that distance at maximum zoom, for ISO 100. It’s usually measured in meters. The Canon 580EXII has a guide number of 58, as does the Yongnuo YN-560. This is used to calculate manual flash settings for your camera.
The second term is zoom. Your flash can often zoom to a preset distance to match the zoom of your lens, allowing it to throw light more in line with what you are shooting. This is extremely useful in auto flash; the drawback to that is the camera must be connected to the flash. The longer the zoon, the further the light will travel, and the less it will spread out.
The third term is sync speed, or shutter sync speed. On most higher end cameras, like the EOS 7D and 60D this is 1/250. For the lower end cameras, like the Digital Rebel series, this is 1/200. Some cameras won’t sync above 1/125 to 1/160. The slower the maximum sync speed, the slower you have to shoot. At speeds above the sync speed, either you will need a flash with high-speed sync, or you will get dark bands on your image.
The fourth term is rear or front curtain sync. In rear curtain sync, your flash fires at the end of the exposure, and in front curtain it fires at the start. This really only applies beginning at 1/30 – 1/60, depending on your model.
The last term I’ll introduce is TTL. Most of today’s automatic flashes are capable of being controlled by the camera, provided they are mounted to the camera. Today’s cameras meter through the lens, and pass that information to the flash to set output power and zoom. Many cameras use a more advanced feature called E-TTL, which is electronic metering through the lens. Using this method can improve your flash exposures. The downside is using your flash on camera can be disappointing, as it flattens the light and removes depth and character.
The range of a flash is limited by inverse square law, which states that light drops off from a source rapidly. For instance, a flashlight shined into the dark starts out quite bright, but ends up not even visible beyond some distance based on its power. This law states that doubling the distance from a subject to a source reduces light to ¼ its original level. Almost all light sources follow this rule.
When using your flash on camera, use your E-TTL features to get the best exposure. To correctly expose flash manually, you will need to adjust your aperture to control exposure for the light from the flash and your speed to control ambient light. To find the required to take a photo of a subject use this formula- f-stop number = GN/distance to subject. To figure out the distance to place your flash for a preset aperture use this formula- distance = GN/f-stop number. These are usually measured in meters, so remember to set up accordingly. Guide number is at ISO 100, so any change in ISO, must be accounted for.
A couple points- on camera flash gives a hard light, which results in a loss of shadows in the image making the subject appear flattish. On camera, or flash on the axis of the lens, gives red-eye effect, which is when the eye reflects red light straight back in the direction it came from.
Another thing to mention about off camera flash, besides adding depth, character, and bringing out detail, when used properly it can bring out the eye colors and make them stand out a little. This is especially true in brown and dark eyes. It takes some practice, but the results are worth it!
I like to use the YN-560, as this a nice, inexpensive, and powerful manual flash, paired with my with radio triggers. This allows for shots on camera can’t get, and it creates a nice direction to the light. Having directional lighting on a portrait really adds to the magic. That’s why you see it even in the paintings from the old masters. Next time we talk about flash, we’ll discuss fill, main, and lighting ratios. We’ll also discuss basic lighting patterns for portraits, and how to take the guesswork and mathematics out of getting your manual flash exposures.
I hope this information brings you another tool in our quest for the perfect picture. Let me know if it has! Remember to share your pics and post your questions at the Hohenfels Volks Facebook page, and or by commenting here!
Today we’re going to talk about flash. Learning to use flash is one of the major steps you should take in getting your photos gallery ready.
Today’s electronic flashes work amazingly well and can put a great deal of light right where you need it. The secret to using flash to get the right exposure is knowing how to meter and knowing how to balance your lighting.
First, let’s talk about several terms and features of an average flash.
The first term to know is Guide Number or GN. This is an indication of your flash’s power. It means your flash can provide light up to that distance at maximum zoom, for ISO 100. It’s usually measured in meters. The Canon 580EXII has a guide number of 58, as does the Yongnuo YN-560. This is used to calculate manual flash settings for your camera.
The second term is zoom. Your flash can often zoom to a preset distance to match the zoom of your lens, allowing it to throw light more in line with what you are shooting. This is extremely useful in auto flash; the drawback to that is the camera must be connected to the flash. The longer the zoon, the further the light will travel, and the less it will spread out.
The third term is sync speed, or shutter sync speed. On most higher end cameras, like the EOS 7D and 60D this is 1/250. For the lower end cameras, like the Digital Rebel series, this is 1/200. Some cameras won’t sync above 1/125 to 1/160. The slower the maximum sync speed, the slower you have to shoot. At speeds above the sync speed, either you will need a flash with high-speed sync, or you will get dark bands on your image.
The fourth term is rear or front curtain sync. In rear curtain sync, your flash fires at the end of the exposure, and in front curtain it fires at the start. This really only applies beginning at 1/30 – 1/60, depending on your model.
The last term I’ll introduce is TTL. Most of today’s automatic flashes are capable of being controlled by the camera, provided they are mounted to the camera. Today’s cameras meter through the lens, and pass that information to the flash to set output power and zoom. Many cameras use a more advanced feature called E-TTL, which is electronic metering through the lens. Using this method can improve your flash exposures. The downside is using your flash on camera can be disappointing, as it flattens the light and removes depth and character.
The range of a flash is limited by inverse square law, which states that light drops off from a source rapidly. For instance, a flashlight shined into the dark starts out quite bright, but ends up not even visible beyond some distance based on its power. This law states that doubling the distance from a subject to a source reduces light to ¼ its original level. Almost all light sources follow this rule.
When using your flash on camera, use your E-TTL features to get the best exposure. To correctly expose flash manually, you will need to adjust your aperture to control exposure for the light from the flash and your speed to control ambient light. To find the required to take a photo of a subject use this formula- f-stop number = GN/distance to subject. To figure out the distance to place your flash for a preset aperture use this formula- distance = GN/f-stop number. These are usually measured in meters, so remember to set up accordingly. Guide number is at ISO 100, so any change in ISO, must be accounted for.
A couple points- on camera flash gives a hard light, which results in a loss of shadows in the image making the subject appear flattish. On camera, or flash on the axis of the lens, gives red-eye effect, which is when the eye reflects red light straight back in the direction it came from.
Another thing to mention about off camera flash, besides adding depth, character, and bringing out detail, when used properly it can bring out the eye colors and make them stand out a little. This is especially true in brown and dark eyes. It takes some practice, but the results are worth it!
I like to use the YN-560, as this a nice, inexpensive, and powerful manual flash, paired with my with radio triggers. This allows for shots on camera can’t get, and it creates a nice direction to the light. Having directional lighting on a portrait really adds to the magic. That’s why you see it even in the paintings from the old masters. Next time we talk about flash, we’ll discuss fill, main, and lighting ratios. We’ll also discuss basic lighting patterns for portraits, and how to take the guesswork and mathematics out of getting your manual flash exposures.
I hope this information brings you another tool in our quest for the perfect picture. Let me know if it has! Remember to share your pics and post your questions at the Hohenfels Volks Facebook page, and or by commenting here!
Thursday, October 13, 2011
The Zone System
Welcome back to Hohenfels Volks. This time we’re going to deal with the Zone System.
Ansel Adams and Fred Archer developed the Zone System. Most of us have heard of Ansel Adams, and seen some of his magnificent works. Fred Archer was another big name in the early days of photography, pioneering the use of still photography for motion picture and movie star publicity, and was an early proponent of photography in advertising. Together they developed a system that brought the concept of sensitometry and print density together, allowing for proper exposure of film and prints.
It sounds pretty complicated, and an in depth analysis of it can be, quite technical. We won’t go too deep here, but we will hit upon it more than in our exposure topic. Learning about the basics of the zone system can bring some zing into your work, and help deliver you from the dark ages of auto mode, so here goes!
There are 11 steps, or zones, from black to white. Here is an image I made showing the zones.
The actual full range is smoother, but given the nature of photography, we end up with approximately these zones.
At zone 0, there is no detail and no texture. There is no usable information at all. This is the same at zone x. At zone i and ix, there is limited tone, but not much else in the way of detail. Ansel Adams described the ranges as; full spectrum, zones 0 through x, dynamic range, zones i through ix, and textural range, zones ii through viii. In his book, The Negative, he describes the zones as:
0 Total black in print
I Black with some tonality but no texture
II The first suggestion of texture; the darkest part of the image where texture and detail are required
III Average dark materials and low values showing adequate texture
IV Average dark foliage, dark stone, or landscape shadows
V Middle gray (18% reflectance): clear north sky; dark skin, average weathered wood
VI Average Caucasian skin in sunlight; light stone; shadows on snow in sunlit landscapes
VII Very light skin; shadows in snow with acute side lighting
VIII Whites with texture: textured snow, highlights on Caucasian skin
IX white without texture; glaring snow, may print as pure white
X Pure white: light sources in the picture area and specular highlights
When metering from a source, your camera, or meter, will render the metered object in zone v. Knowing this, you can use your exposure compensation or manual settings to bring the desired part of the scene into the zone you desire.
In practical application, you identify the main element in your scene, then expose for the desired zone, the other elements exposing according the placement of your main element. If you desire an area to be zone v, then the rest of the image exposes for the zones according to what you placed in zone v. It’s fairly straightforward. Take a meter reading from the parts you want in zone 5, and you will end up with something that matches what you visualized.
A great way to see the effects of the Zone System is to look up Ansel Adams on Google, or your favorite search engine. His work is quite addictive, though, so be prepared to spend some time admiring his art. Then look into the Zone System. After a few hits and misses, you’ll be glad that Fred Archer and Ansel Adams collaborated to create such a wonderful tool to make the pursuit of our passion a little easier!
I hope you have a chance to shoot away over the next few days. Hohenfels alone has enough incredible scenery to try out the zone system, not to mention the surrounding communities and towns. Maybe in a church or a field, or even a portrait. Let the magic work for you! Who knows, you may capture a real prizewinner! Get out and give it a try!
How do you plan to use the sone system? Let us see by posting at the Hohenfels Volks Facebook page. you might inspire a convert!
Remember; leave your comments and questions here and on our Facebook pages, also.
Thanks to all of you, have a great day!
Ansel Adams and Fred Archer developed the Zone System. Most of us have heard of Ansel Adams, and seen some of his magnificent works. Fred Archer was another big name in the early days of photography, pioneering the use of still photography for motion picture and movie star publicity, and was an early proponent of photography in advertising. Together they developed a system that brought the concept of sensitometry and print density together, allowing for proper exposure of film and prints.
It sounds pretty complicated, and an in depth analysis of it can be, quite technical. We won’t go too deep here, but we will hit upon it more than in our exposure topic. Learning about the basics of the zone system can bring some zing into your work, and help deliver you from the dark ages of auto mode, so here goes!
There are 11 steps, or zones, from black to white. Here is an image I made showing the zones.
The actual full range is smoother, but given the nature of photography, we end up with approximately these zones.
At zone 0, there is no detail and no texture. There is no usable information at all. This is the same at zone x. At zone i and ix, there is limited tone, but not much else in the way of detail. Ansel Adams described the ranges as; full spectrum, zones 0 through x, dynamic range, zones i through ix, and textural range, zones ii through viii. In his book, The Negative, he describes the zones as:
0 Total black in print
I Black with some tonality but no texture
II The first suggestion of texture; the darkest part of the image where texture and detail are required
III Average dark materials and low values showing adequate texture
IV Average dark foliage, dark stone, or landscape shadows
V Middle gray (18% reflectance): clear north sky; dark skin, average weathered wood
VI Average Caucasian skin in sunlight; light stone; shadows on snow in sunlit landscapes
VII Very light skin; shadows in snow with acute side lighting
VIII Whites with texture: textured snow, highlights on Caucasian skin
IX white without texture; glaring snow, may print as pure white
X Pure white: light sources in the picture area and specular highlights
When metering from a source, your camera, or meter, will render the metered object in zone v. Knowing this, you can use your exposure compensation or manual settings to bring the desired part of the scene into the zone you desire.
In practical application, you identify the main element in your scene, then expose for the desired zone, the other elements exposing according the placement of your main element. If you desire an area to be zone v, then the rest of the image exposes for the zones according to what you placed in zone v. It’s fairly straightforward. Take a meter reading from the parts you want in zone 5, and you will end up with something that matches what you visualized.
A great way to see the effects of the Zone System is to look up Ansel Adams on Google, or your favorite search engine. His work is quite addictive, though, so be prepared to spend some time admiring his art. Then look into the Zone System. After a few hits and misses, you’ll be glad that Fred Archer and Ansel Adams collaborated to create such a wonderful tool to make the pursuit of our passion a little easier!
I hope you have a chance to shoot away over the next few days. Hohenfels alone has enough incredible scenery to try out the zone system, not to mention the surrounding communities and towns. Maybe in a church or a field, or even a portrait. Let the magic work for you! Who knows, you may capture a real prizewinner! Get out and give it a try!
How do you plan to use the sone system? Let us see by posting at the Hohenfels Volks Facebook page. you might inspire a convert!
Remember; leave your comments and questions here and on our Facebook pages, also.
Thanks to all of you, have a great day!
Wednesday, September 21, 2011
The Exposure Triangle
Today’s post is on the “Exposure Triangle.”
You’ll find this everywhere on the Internet. A quick Google search turned up 18,300,000 results!
What is the exposure triangle? It’s basically the combination of the three factors that affect your exposure- ISO, shutter speed, and aperture. I put a pic on the Intro to Photography page with the rest of this article.
Remembering it is easy if think of a triangle and visualize that changing as you change your settings. That’s pretty much the gist of it.
Here’s a list as an example. Use that list to visualize your triangle and you’ll be off to the races, at least for the moment. I’ll use whole stops for simplicity. Each stop is either double or half the amount of light compared to the two numbers next to it.
ISO APERTURE SHUTTER SPEED
100 f/4 1/1600
f/5.6 1/800
f/8 1/400
f/11 1/200
f/16 1/100
Looking at the first triangle 1/1600, f/4, at ISO 100, you can see that any changes require a change to another side to remain the same. I can change the exposure to 1/800, f/5.6, at ISO 100 and get the same exposure. Cool, huh?
Let’s try something else. This one will demonstrate the importance of the triangle and knowing how it works. At ISO 200, f/8, 1/400, my image is overexposed. How can I fix it? Try ISO 100, f/8, 1/400. That’s half the previous exposure level!
The first example showing how to get the same exposure is useful to figure out how much DOF you want and to help you keep your exposure constant in constant lighting.
The second example gives you an idea of how to use this tool to get more of your shots usable in changing lighting.
For the rest of this, visit our Intro to Photography page, and do a web search on it. Don't worry, though, more about exposure will be coming around soon!
Focal length will be our next topic.
Please leave your feedback here and on our Facebook page.
Enjoy the rest of your week!
You’ll find this everywhere on the Internet. A quick Google search turned up 18,300,000 results!
What is the exposure triangle? It’s basically the combination of the three factors that affect your exposure- ISO, shutter speed, and aperture. I put a pic on the Intro to Photography page with the rest of this article.
Remembering it is easy if think of a triangle and visualize that changing as you change your settings. That’s pretty much the gist of it.
Here’s a list as an example. Use that list to visualize your triangle and you’ll be off to the races, at least for the moment. I’ll use whole stops for simplicity. Each stop is either double or half the amount of light compared to the two numbers next to it.
ISO APERTURE SHUTTER SPEED
100 f/4 1/1600
f/5.6 1/800
f/8 1/400
f/11 1/200
f/16 1/100
Looking at the first triangle 1/1600, f/4, at ISO 100, you can see that any changes require a change to another side to remain the same. I can change the exposure to 1/800, f/5.6, at ISO 100 and get the same exposure. Cool, huh?
Let’s try something else. This one will demonstrate the importance of the triangle and knowing how it works. At ISO 200, f/8, 1/400, my image is overexposed. How can I fix it? Try ISO 100, f/8, 1/400. That’s half the previous exposure level!
The first example showing how to get the same exposure is useful to figure out how much DOF you want and to help you keep your exposure constant in constant lighting.
The second example gives you an idea of how to use this tool to get more of your shots usable in changing lighting.
For the rest of this, visit our Intro to Photography page, and do a web search on it. Don't worry, though, more about exposure will be coming around soon!
Focal length will be our next topic.
Please leave your feedback here and on our Facebook page.
Enjoy the rest of your week!
Sunday, September 18, 2011
Metering
Welcome back
This time around, we're going to talk about METERING. Let's dive right in.
What is METERING and why is it important?
Basically METERING is measuring the light. It's extremely important, because it lets us know how to expose the scene.
Sounds simple, right? Unfortunately, it's not as simple as you might think, as there are several types of METERING.
Cameras use reflected light METERING. Almost every camera in existence takes the reading of the scene and tries to make the exposure for the METERED area to be 18% reflected gray. Not based on color, but on a comparison to a gray level that reflects 18% of the light that hits it. Ansel Adams called this ZONE V.
Evaluative METERING- If you haven't read your camera manual, or you've decided not to change your settings, you're most likely using Evaluative METERING. This means it's averaging out the light over the entire scene to get a basic ZONE V exposure. This is good for most photos, especially those that don't have too much range between lighting levels.
Partial METERING- this is set from your menu and decreases to amount of the scene used for METERING. You can set this on some cameras to different parts of the scene.
Spot METERING- In this mode, the camera METERS off a small spot to set the exposure. This is great for tricky lighting, and for more control of your exposure. It also allows you to get some idea of the range of a scene's lighting for manual exposures.
Generally speaking, using your evaluative METERING mode will give pretty good results. There will be times when switching to partial METERING, or even center weighted, can give better results.
The easiest way to METER a scene is to get an 18% Gray card. You have your subject hold it up, zoom in and METER from that. Take the settings you read and enter them into the camera in manual mode. As long as the light doesn't change you will have a good exposure. Using the gray card allows your camera to METER from a target that matches what it is trying to set. This is best accomplished in spot METERING mode, unless you fill the viewfinder with the card. If you do that, then use evaluative METERING, which will average out the light over the card and result in better exposures.
For more info an METERING, check out our Intro to Photography page. The info there is a little more in depth and includes an example. Also visit Cambridge in Colour, their explanation really clarifies a lot!
Don't forget, if you have any questions, ideas, tips, or comments, post them. You can post them here and on our Facebook page.
This time around, we're going to talk about METERING. Let's dive right in.
What is METERING and why is it important?
Basically METERING is measuring the light. It's extremely important, because it lets us know how to expose the scene.
Sounds simple, right? Unfortunately, it's not as simple as you might think, as there are several types of METERING.
Cameras use reflected light METERING. Almost every camera in existence takes the reading of the scene and tries to make the exposure for the METERED area to be 18% reflected gray. Not based on color, but on a comparison to a gray level that reflects 18% of the light that hits it. Ansel Adams called this ZONE V.
Evaluative METERING- If you haven't read your camera manual, or you've decided not to change your settings, you're most likely using Evaluative METERING. This means it's averaging out the light over the entire scene to get a basic ZONE V exposure. This is good for most photos, especially those that don't have too much range between lighting levels.
Partial METERING- this is set from your menu and decreases to amount of the scene used for METERING. You can set this on some cameras to different parts of the scene.
Spot METERING- In this mode, the camera METERS off a small spot to set the exposure. This is great for tricky lighting, and for more control of your exposure. It also allows you to get some idea of the range of a scene's lighting for manual exposures.
Generally speaking, using your evaluative METERING mode will give pretty good results. There will be times when switching to partial METERING, or even center weighted, can give better results.
The easiest way to METER a scene is to get an 18% Gray card. You have your subject hold it up, zoom in and METER from that. Take the settings you read and enter them into the camera in manual mode. As long as the light doesn't change you will have a good exposure. Using the gray card allows your camera to METER from a target that matches what it is trying to set. This is best accomplished in spot METERING mode, unless you fill the viewfinder with the card. If you do that, then use evaluative METERING, which will average out the light over the card and result in better exposures.
For more info an METERING, check out our Intro to Photography page. The info there is a little more in depth and includes an example. Also visit Cambridge in Colour, their explanation really clarifies a lot!
Don't forget, if you have any questions, ideas, tips, or comments, post them. You can post them here and on our Facebook page.
Subscribe to:
Comments (Atom)