C-22 process

Introduced by Kodak in 1956,^[1] C-22 is an obsolete process for developing color film, superseded by the C-41 process in 1972 for the launch of 110 film and in 1974 for all other formats.^[2]

The development of the film material is carried out at temperatures of around 75°F (24°C), making the process incompatible with the more modern C-41 process, which uses a temperature of 100°F (38°C). C-22 uses Color Developing Agent 3, unlike C-41, which uses Color Developing Agent 4.

The most common film requiring this process is Kodacolor-X.

C-22 film can still (as of 2020) be developed in black and white.^[3]

1. ^ "Kodak Camera Film".
2. ^ "C-22 Film and Black and White Processing – the Analogue Laboratory". 15 February 2014.
3. ^ "Kodacolor-X 35mm Film Cartridge and Box".

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