Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 371
ICAL INSTRUMENTS In Fig. 428 is illustrated an ordinary camera. In the tube A isthe len.s, and at the other end of the apparatus is a frame C con-taining a piece of ground glass. By meansof the bellows B this is moved back andforth until the scene to be photographed issliarply focussed on the… … Fig. 428.—A photographiccamera.
Physics
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