Dufaycolor
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Dufaycolor is an early British additive colour photographic film process, introduced for motion picture use in 1932 and for still photography in 1935. It was derived from Louis Dufay's Dioptichrome pl
A home-processed Dufaycolor 6x6 cm transparency, 1956
Closeup of the color filter layer (réseau) embedded in the base of a Dufaycolor transparency
Kodachrome
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Kodachrome is the brand name for a color reversal film introduced by Eastman Kodak in 1935. It was one of the first successful color materials and was used for both cinematography and still photograph
Dufaycolor
…with some amateurs until manufacture ceased in the late 1950s. They were cheaper than the more sophisticated film types, some of which, especially Kodachrome, were not available in the sizes used by typical snapshot cameras, and amateur darkroom enthusiasts could process Dufaycolor at home almost as easily…
Kodachrome box
Kodachrome K135 20 Color Reversal film
Kodachrome II – film for color slides; the 35mm still photography format is shown above
Ciné-Kodak Kodachrome 8mm movie film (expired May 1946)