https://www.nfsa.gov.au/sites/default/files/2025-02/Colour%20TV%20Mega%20Menu%203%20TVs_1000x745%20px.jpg
Two-colour process
Systems of colour reproduction in which the visible spectrum is divided into blue-green and orange-red regions for recording and presentation.
Although extensively used in early colour film processes, the inherent inability of two components to reproduce a satisfactory range of hues rendered all such systems obsolete when three-colour processes became readily available. 1
See also Bi-pack, Technicolor
References
1 1969, The Focal Encyclopedia of Film and Television Techniques, Focal Press, London, New York
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.