The stereoscope and stereoscopic photography (1890)
Drouin, F. (Felix) · Bradford ; London : Percy Lund, The Country Press · leaf 126
cluded. He remarked alsothat it is necessary tohave lenses of long focus,so that the foregroundis not magnified morein proportion to thedistance, than is the casein natural vision. He constructed an in-strument called the steveo-scopeometer, with whichseparations correspond-ing to various… … 120 THE STEREOSCOPE into degrees on the arc A B. A second arc C Dindicates the corresponding separations, and theradius D O carries divisions which correspond tothe distances of the object. By the points ofdivision of this radius, arcs have been tracedhaving the same centre as the section. At…
Stereoscope · Photography, Stereoscopic
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