Tuesday, March 2, 2010
Today, “high ISO” means values like 25,600 instead of 800. These dramatic advancements are giving nature photographers a whole new way to think about making images.
Traditionally, we’ve thought of higher ISO as being what you use in fading light, but it’s becoming clear that it’s now a tool that extends far beyond low-light photography. Of course, if you’re shooting in low light, the usefulness is pretty obvious. Natural-history photographers will be able to use high ISO to particularly good effect. As the day fades, we now can get crisp, smooth images of behavior that would have been impossible previously. Look at the image Lepp made of the pack of wild dogs. These canines came out of the brush shortly before sunset. In the dimming light, they were on the hunt. As it got darker and darker, Lepp and his companions were able to follow the pack and could continue shooting. They were getting perfect photographs of behavior that had been all but impossible to capture before.
We think that compared to resolution, ISO is going to be a much more compelling technology to follow in the future. We have resolution numbers now that give photographers the ability to print large and to crop an image as necessary. Boosting resolution from its current levels gives diminishing returns. Having higher ISO, on the other hand, can truly revolutionize photography, and nature photography, in particular.
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