-
Screenshot from Mayorov, Nikolai (2012): Soviet Colours. Translated by Birgit Beumers. In: Studies in Russian & Soviet Cinema, 6:2, pp. 241–255. doi: 10.1386/srsc.6.2.241_1 Courtesy of Nikolai Mayorov.
Dufaycolor was a regular line screen process whereby the incident light was filtered through a pattern of tiny color patches created by lines in red, green and blue, the so called réseau.
Gasparcolor was the first three-color multi-layer monopack film available for practical use. It was a double-coated print film with a cyan layer on one side and two layers dyed magenta and yellow on the other side (see illustrations).