Procédé Tetrachrome


Based on four primary colors, the process successively recorded two simultaneous images for two primary colors each. In projection, the four images were combined on screen, supposedly via a regular projector.

Secondary Sources

Anonymous (1913): The New Breon-Randabel Stereoscopic Color Film. In: Camera Craft. A Photographic Monthly, 20,7, Jul., pp. 335–336.

Anonymous (1913): Tetrachrome Colour Films. In: The Bioscope, 330,XVIII, Feb., p. 397.

Anonymous (1913): Colour and Stereoscopic Effect. In: The Bioscope, 328,XVIII, Jan., p. 247.

Egrot, L. (1913): Une Grande Actualité Scientifique. Films Tetrachromes. In: Ciné-Journal. Organe Hebdomadaire de l’Industrie Cinématographique, 6,233, Feb., p. 17.


FR 466 827; FR 464 345; FR 465 496; FR 453 754; FR 18 403; FR 465 543; BE 253 190