Magic Fire (USA 1955, William Dieterle), item no. DIF 2.04.35.14. Credit: Deutsches Filminstitut DIF. Photograph of the safety print by Barbara Flueckiger.
Similar to Technicolor, the Iriscolor process needed a special beam-splitter camera for exposing three black-and-white negatives on Kodak film stock. These negatives were used for imbibition printing.
Between 1940 and 1942, Tobis Tonbild-Syndikat AG ...
Subtractive 3 color: assembly process, pigment process, still photography
“Carbon printing was originally a monochrome process. It was invented and patented by Alphonse Poitevin (1819–82) in 1855 and was the first practical printing method with pigments. After Poitevin, the carbon process was patented extensively ...