Johnson, G. Lindsay (George Lindsay), b. 1853 · London : G. Routledge · leaf 97
Fig. 15.—Diagram showing FiG. 16.—Diagram showing the ellects o{ additive the efEects of subtraotive lights. colours. -^ effect of superimposing, discs of gelatine films or glassstained with the complementary colours to red, green,and blue, the result being a black patch. The colouredillustration… … u O tc Td QJ OJ cu iS Qt X 2-5 OBTAINING PHOTOGRAPHS IN COLOUR 69 In order to make a three-colour transparency, wemust therefore proceed as follows:—A red filter negativeis taken and a contact transparency made by exposinga plate behind the negative, and developed in the usualway; the grey-black…
Color photography
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