The stereoscope and stereoscopic photography (1890)
Drouin, F. (Felix) · Bradford ; London : Percy Lund, The Country Press · leaf 66
htlyleaned, in order to obtain the relief more easily.The adjustment in width is found by varying theseparation of the lenses with the aid of the buttonB, which acts on two racks. AND STEREOSCOPIC PHOTOGRAPHY. 59 In the more simple model shown by Fig. 43,the lenses B B are moved by the hand.… … rig. 44. Fig. 44 shows us another form of stereoscopeof variable separation, which answers the samepurpose, but is not dismountable. The base isformed of a frame on which the photographs arefixed by two clips. The plane of the lenses isjoined to this frame by two supports, which canbe more or less…
Stereoscope · Photography, Stereoscopic
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