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A camera that uses a tiny ("pinhole") aperture in a light screen (flange) as a lens.

8 votes
4 answers
8k views

Concept of focus for a pinhole camera?

Is there a concept of "focus" and thereby defocus for a pinhole camera? If yes, then what is it? If it is assumed that only one ray of light enters in through the pinhole from every point on the scene …
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