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Relative Sharpness and Cones of Light

John Neel

Depth of field is a way to assure a selection of the subjects in an image appears sharp. Depth of field is a cause of aperture function. It has to do with the opening created by the lens iris relative to the subjects in a scene. It has to do with light cones. Light cones are the gathered rays of...

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In Frame Out of Frame

John Neel

TeePee – © John Neel         This article is a repost from 2013.   The photographic image captures a segment of what is in front of the camera, but the viewer senses that what is shown is simply a crop of a much larger scenario. The framing of an image is a border of sorts. To a degree, it defines...

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