Abstract
THE representation of colour, in addition to form and light and shade, by photographic means is a subject that has been allowed to get very far behindhand so far as text-books of photography are concerned. Mr. Wall's volume is therefore very welcome as doing a great deal towards filling this gap in photographic literature, which has been automatically increasing for many years. It does not quite fill the gap, for photomechanical methods are not treated of, historical and theoretical data have been, so far as possible, omitted, and the scope of the work has been restricted by the fact that all methods and formulae given have been personally tested in practice. But within the limits indicated it is surprising how many methods there are of representing colour. Of three-colour processes there are the carbon and gum bichromate processes, the imbibition of dyes, mordanting processes, the bleach-out process, and the use of screen plates (autochrome, Paget). Of what may be called direct processes there are the interference heliochromy of Lippmann, the use of “silver subchlorides,” and the diffraction and prismatic dispersion processes. Finally there are two colour processes, and those adapted specially for cinematography. The book forms an excellent practical introduction to the subject.
Practical Colour Photography.
By E. J. Wall. Pp. vii + 248. (Boston, Mass.: American Photographic Publishing Co.; London: H. Greenwood and Co., Ltd., 1922.) 13s. 3d.
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[Book Reviews]. Nature 111, 531 (1923). https://doi.org/10.1038/111531b0
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DOI: https://doi.org/10.1038/111531b0