Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 371
Fig. 428.—A photographiccamera. … Fig. 4-2.i.—Section of aZeiss Tessar photo-graphic objective. Thelight enters in the direc-tion shown b)- the arrow. The exposure is then made, that is, lightis admitted through the lens to the sensitiveplate, after which, in a dark room, theplate is removed from its holder, developed and fixed.…
Physics
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