Mees, C. E. Kenneth (Charles Edward Kenneth), 1882-1960, Eastman Kodak Company · Rochester, N.Y. : Eastman Kodak Company · leaf 25
th which we want to ^B/^ form an image, we can do what we wish to and make all the rays from the star come together again in the image of the star. And this is the purpose of our cam- /D. era lenses, to form an image Fig. 15. as sharp as that given by Deflecting a Ray of Light. the smallest pinhole… … small picture we shall only Fig. 16. Path of Deflected Ray. need a small camera with a short bellows, so the pin- hole will be near the film. But if, instead of a pinhole, we use a lens, we shall find that the lens must be placed at a certain distance from the film (depending upon its focal length…
Photography
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