Multicolor

Multicolor is a subtractive natural color motion picture process. Multicolor, introduced to the motion picture industry in 1929, was based on the earlier Prizma Color process, and was the forerunner of Cinecolor.

For a Multicolor film, a scene is shot with a normal camera capable of bipacking film. Two black-and-white 35 mm film negatives are threaded bipack in the camera. One records the color red (via a dyed panchromatic film), and the other, blue (orthochromatic). In printing, duplitized stock is exposed and processed with one record on each side. In a tank of toning solution, the film is floated upon the top of the solution with the appropriate chemical. The cyan record is toned a complementary red with a copper ferrocyanide solution, and the red being toned blue/cyan with ferric ferrocyanide solution.

Multicolor enjoyed brief success in early sound pictures. The following features included sequences in Multicolor: This Thing Called Love (1929), His First Command (1929), Red Hot Rhythm (1929), Sunny Side Up (1929), Married In Hollywood (1929), Fox Movietone Follies of 1929 (1929), The Great Gabbo (1929), New Movietone Follies of 1930 (1930) and Delicious (1931). All of these features were produced by Fox Film Corporation except The Great Gabbo (Sono Art-World Wide Pictures) and Red Hot Rhythm (Pathé).

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