Art of photography : instructions in the art of producing photographic pictures in any color and on any material, for the use of beginners and also of persons who have already attained some proficiency in the art, and of engravers on copper, stone, wood, etc. (1854)
Halleur, G. C. Hermann, Schubert, F. (Franz) · London : J. Weale · leaf 32
17 THE APPARATUS. must be cut off to fit them for the round frame j moreover, the apparatus requires repeated moving in the course of every operation ; and the naturally low temperature of the metal demands a longer exposure of the plate. The old construction of the camera, and which is even at… … E D plate a, and by screws. The outer box. A, the size of which is regulated by the size of the plates, encloses a smaller sliding box, C C C, which is open at both ends, and may be moved backwards and forwards on the lengthened ground-board, E D, by means of the rack-work, F. A piece is cut out at…
Photography
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