Hunt, Robert, 1807-1887, author, Contained in (work): Hunt, Robert, 1807-1887. Manual of photography · London ; Glasgow : Richard Griffin and Company · leaf 20
6 PRACTICE OF PHOTOGRAPHY. ing of a white or yellow paper, it will be evident that the highest lights will be represented as dark portions , and the shadows as lights. Thus we obtain a negative image. The female figure in the adjoining woodcut, fig. 14, is copied from a calotype negative portrait ;… … Fig. 14. Fig. 15. For the production of photographic drawings, it is necessary to be provided with a copying frame and glass. The size of "this copying frame may vary at the will of the operator, as he may desire to copy large or small objects. The glass must be of such thickness as to resist some…
Photography
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