Examples of Dufaycolor.

Examples of Dufaycolor.

Dufaycolor first appeared in 1932 as a 16mm cine film, followed in 1935 by a roll film version. It employed a geometric screen made up of red lines alternating with rows of green and blue rectangles. Colour reproduction was good, and it was comparatively fast—although only one-third of the speed of contemporaneous black-and-white film.

Dufaycolor was aimed at the everyday ‘snapshot’ market. A processing service which returned finished transparencies, mounted and ready for viewing, opened up colour photography to a whole new class of photographers. Dufaycolor, the last of the screen processes, remained on the market up to the 1950s.