CATEGORIES OF COLOUR SYSTEMS.

Colour film systems fall into a number of broad categories each of which directs the restorer to a specific approach, while a smaller number are not easily categorised.

The following are examples of the main categories - the first three used separate films to produce separation records that were synthesised in different ways. Technicolor became solely a printing method by 1955, but began life as a series of complete colour systems.

Kinemacolour type

Nature colour

Technicolor 1935 type

Dufay type

Agfacolor-Kodachrome

Integral tripack analisys

Dye destruction