The stereoscope and stereoscopic photography (1890)
Drouin, F. (Felix) · Bradford ; London : Percy Lund, The Country Press · leaf 157
being equal. Under this disc, which ismovable round its centre, three larger holes arepierced, whose positions are indicated by the threelines traced on the margin. If the plate be turned, as shown in Fig. 96,i.e., if one of the lower holes be placed oppositeone of the upper ones, the instrument… … Fig. 96.—Position for ordinary views. Fig. 97.—Position for stereoscopic views. AND STEREOSCOPIC PHOTOGRAPHY. 151 For pin-hole stereoscopic work the diameterof the hole should be from 20 to T%5n of a milli-metre, and its distance from the plate from 5 to10 centimetres. M. Meheux, who gave us…
Stereoscope · Photography, Stereoscopic
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