Colour Development Toning.

This procedure was the form of colour development finally used by Kodak to produce the first reversal colour tripack film, Kodachrome, in 1935, and is the basis of all modern colour film systems. The technology of dye development by this procedure was already well documented and in the 1920’s, some films had already been "toned" by this process. Much later, in the 1960's "Moby Dick" made on Technicolor was probably the last full-length film to be "toned". A black printer was used to produce a desaturated dull effect like a dirty painting. Short films and sections made on conventional negative positive colour film have also been desaturated In this case the normal colour print process was modified to omit the Bleach stage so that all the dyes were developed but the silver image not removed, giving the image an overall sombre appearance.