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Alex Cooke
Cleveland, OH

Articles written by Alex Cooke

The Exposure Triangle: Understanding How Aperture, Shutter Speed, and ISO Work Together

Don't worry, this isn't a geometry lesson. The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph: aperture, shutter speed, and ISO. One must balance all three of these to achieve a desired result, an adjustment of one requiring adjustments of at least one of the others. They do not only affect exposure, but are also the largest determiners of the global appearance of an image; thus, their mastery is absolutely crucial both for technique and composition.