Abstract
SINCE 1926 the Spicer-Dufay process of colour photography has been the object of very intensive research and a demonstration of colour films made by this process was given at a Royal Society soiree in 1931 (see NATURE, May 30, 1931, p. 821). It is stated that the new product will shortly be marketed for 16 mm. cinematography, and later it is intended to supply also rbll films for ordinary cameras and standard 35 mm. cinematograph film. The new film consists of a transparent base on which is first coated a three-colour mosaic of regular pattern; in intimate contact with the colour mosaic screen is a very thin waterproof layer and above this is a highly sensitive panchromatic photographic emulsion. Exposure is made through the film base and colour mosaic. A positive image is formed by reversal. In principle, the process is thus similar to many which have long been operated with great success for still photography in colour.
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Spicer-Dufay Colour Film. Nature 133, 678–679 (1934). https://doi.org/10.1038/133678b0
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DOI: https://doi.org/10.1038/133678b0