The stereoscope and stereoscopic photography (1890)
Drouin, F. (Felix) · Bradford ; London : Percy Lund, The Country Press · leaf 43
position ofthe opening C C are sodetermined that the righteye can only see the pictureplaced at the left, and theleft eye that on the right.The sides of the openingC C are fitted with keys,with which to regulate thedimensions according to sizeand distance of the objects.This instrument profits… … Fig. 19. AND STEREOSCOPIC PHOTOGRAPHY. 37 fact, the eyes, accustomed to look at the planeg d, must converge as if they were looking at theplane C C, which is much nearer. It is thereforeevident that, at first, it will prove difficult, theconditions differing from those of ordinary vision.To…
Stereoscope · Photography, Stereoscopic
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