Agfacolor/Kodachrome/Eastman Colour type: 3 colour analysis on integral tripack film/ subtractive synthesis on integral tripack film.

The incorporated coupler colour films using an integral tripack were first put onto the market in Germany in 1935 following the release of the very first tripack, Kodachrome, in 1935. The early motion picture materials of this type were reversal. In reversal/reversal duplication or printing from colour prints, the lack of an integral mask produces colour reproduction problems beyond one stage of duplication. Fourth or fifth generation reversal duplicates are of very poor quality for this reason, whereas fourth generation duplicates using masked original and intermediate materials still return good colour quality.

Although the first colour negative was released in 1935 by Agfa, only in the late 1950’s did a successful negative-positive system emerge, from Eastman Kodak. Much of the success of the Eastman system was due to the integral mask on the negative.

Most other manufacturers followed the Eastman lead and Agfa, Gevaert, Fuji, Sov, and Orwo all produced similar materials.