Hunt, Robert, 1807-1887, author, Contained in (work): Hunt, Robert, 1807-1887. Manual of photography · London ; Glasgow : Richard Griffin and Company · leaf 121
107 THE CAMEEA OBSCERA. Fig. 53 shows a tripod stand and washing dish, upon which the collodion plate is placed for developing, washing, &c. i%r- 53. Another form of plate-holder, which is known as the lever pneumatic plate-holder, is shown at fig. 54. … Fig. 54. The picture being finished, it becomes necessary to multiply the picture obtained by copying, by superposition. The best form of pressure frame is that represented, fig. 55. In this Fig. 55. instrument the back opens in two pieces, so as to admit of the examination of the picture without…
Photography
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