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Basic Photographic Materials and Processes, 3rd Edition by Nanette L. Salvaggio

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Chapter 4

Photographic Optics

image

Photograph by Professor Michael Peres, Biomedical Photographic Communications, Rochester Institute of Technology

 

Image Formation with a Pinhole

The pinhole, as an image-forming device, has played an important role in the evolution of the modern camera. The observation of images formed by a small opening in an otherwise darkened room goes back at least to Aristotle's time, about 350 B.C.—and, indeed, the pinhole camera still fascinates many of today's photography students because of the simplicity with which it forms an image. The darkened room, or camera obscura, evolved into a portable room that could be moved ...

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