Settings from 70 to 90 can be used to make sure facial tones are not overexposed. As a general rule of thumb, Caucasian skin generally falls in the 80 IRE range, with darker skin tones registering as low as 70, and very fair skin or lighter areas of your subject edging closer to 90 IRE. Once you’ve decided the approximate range of tones that you wa

This different way of looking at light not only explained the photoelectric effect, but also provided the foundations of quantum theory.

a scene has a wide range of intensities, HDR photography frequently results in an image with oversaturated colors, which gives it a surreal appearance. For example, when you merge three exposures in third-party software like Photomatix, the final composite image can have dramatically different colors than the original scene.

This damned Italian light was subtly but infuriatingly different from the light in France—and painting it required Corot to dig deep into his slim skill set