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Backpacker Magazine – March 2010

Shoot Photos Like a Pro: Exposure

Learn the basics of shutter speed, aperture, and ISO.

by: Steve Howe


Aperture, shutter speed, and ISO work together to determine the amount of light that reaches your camera’s sensor; you must adjust one when you change another. Shutter speed controls the length of time the shutter is open; f/stop controls how wide the aperture opens; ISO is a measure of the camera’s sensitivity to light.

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May 27, 2011

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