Book Review | Published:

[Short Reviews]

Nature volume 145, page 142 (27 January 1940) | Download Citation



IN the previous edition Major Klein gave us, in addition to much information and informed criticism on all aspects of motion pictures in colour, first-hand knowledge of the Gasparcolor system. He has since migrated to the Dufay-Chromex concern and now treats us with details of the Dufay system, the commercial difficulties, and the brilliant way in which they have been met. Perhaps we shall not get the full story of the most used colour process until he is acquired by Technicolor. The text remains a most useful historical summary of the subject, a guide to the present application of scientific principles in a difficult branch of commercial engineering, and a severe criticism of usage. Of particular mention are the Dufay printing and mitigation of moiré, the treatment of beam-splitter cameras, the development of suitable light-sources, and the calculation of filter transmissions. We wish other publishers would emulate the gay colours of the binding.

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