Chapter 4. How Digital Cameras Capture Light

How Digital Cameras Capture Light

All photography is about light.

Photos may be of important or trivial subjects, in color or black and white. A picture might be as candid as the next minute’s news or a painstaking pose, a slice of reality or a helping of the abstract. It can be still or moving, invoking weighty subjects or the flightiest of fancies. But whatever else photographs are, they are about light. They are about what light does when it flickers off a river, when it exposes the wrinkles and buried veins of age, how it transforms a sky, or how it creates depth and curves and textures you can feel with your eyes. Photos are even ...

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