integral tripack

Definition: Colour material in which all three layers sensitive to different primary colours are laid on one piece of film. * As opposed to composite colour films.
More punch than a six-pack
While modern films are still based on the principle of separating sensitivities to each of the three primary colours, there are now far more than three layers used. Although some films have seventeen layers and over, many are not light-sensitive as such but are used as barriers to stop one layer interfering with each other. Nonetheless, one colour-sensitive layer may be divided into several sub-layers such as fast- and slow-speed to control factors like contrast and reciprocity characterisitcs.

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