Proposal of a variety of processes of three-color photography

Theory: still photography
“Louis Ducos du Hauron is reported to have become interested in the reproduction of colors by photography in 1859, when he was twentyone years old (Potonniée, 1939). In 1862 he submitted to a friend of his family, M. Lelut, a paper embodying ...

2 Images

Proposal of a variety of processes of three-color photography

Theory
Description of a variety of color processes, even for images in motion by the use of a rotary shutter.

Raycol

Additive 2 color: Beam-splitter, sawn-off lens

13 Images in 1 Gallery

Roncarolo

Subtractive 2, 3 or 4 color: Beam-splitter and bi-pack, later dye-transfer
The Roncarolo system required a camera capable of recording two panchromatic negatives (which became three or four in subsequent patents) through the use of a beam splitter and red and green filters. The chromatic information registered on the two or ...

Rota Farbenfilm

Subtractive 2 color: Bi-pack, mordant toning

13 Images in 2 Galleries

Rotocolor

Additive 2 color: Rotary filter
“The Rotocolor process was an additive system for color cinematography. The process was announced in 1931 by H. Muller. According to an article in Film Daily, April 12, 1931, and The Motion Picture Herald, April 11, 1931, the process consisted of ...

Rouxcolor 2 color / Cineoptichrome

Additive 2 color: Beam-splitter

2 Images

Rouxcolor 4 color

Additive 4 color: 4 lenses

7 Images in 1 Gallery

Russian three-color process

Subtractive three color

6 Images

Russian two-color system

Subtractive two color

1 Image

Sakuracolor

Subtractive 3 color: Chromogenic monopack, reversal

Sennett Color

Subtractive 2 color: Bi-pack, double coated, toned
“Public showings of the work done at this plant in Hollywood have been given to Los Angeles audiences. The release prints are made on double sided film. Both sides are developed at one time and then toned red on one side and bluegreen on the ...

18 Images in 1 Gallery

Sensitizing theory

Color theory
“Dr. H. W. Vogel, the discoverer of colour sensitizers, made three-colour photography possible, and has been the first to recognise the relation between colour sensitiveness of plate and printing colour in the following principle made known in ...

Silver dye-bleach

Subtractive 3 color: Dye-bleach
“Probably the first use of the catalytic property of silver was in 1889, when E. Howard Farmer disclosed the action of a silver image upon strong dichromate solutions (Eng. P. 17773/89). When a plate or film, containing a silver image, is immersed ...

Sirius

Subtractive 2 color: Beam-splitter, double-coated
“The Dutch Sirius Color process (1929) used a camera with a beamsplitting system behind the lens to expose a single film, the film passing through two gates at right angles to each other. The double-coated print film was dye-toned. The process ...

142 Images in 4 Galleries

Sistema Cristiani-Mascarini

Additive four-color: beam splitter and filters, four images on 35mm black and white film.
For this four-color process, the light beam was decomposed into four parts, each of which simultaneously exposed an area equal to one quarter of the 35mm frame of a black and white negative. This was obtained optically by placing a diaphragm and a ...

2 Images

Sovcolor negative film type B

Subtractive 3 color: Chromogenic monopack, daylight

15 Images in 3 Galleries

Sovcolor negative type G

Subtractive 3 color: Chromogenic monopack, Tungsten

Spectracolor (= British version of Ufacolor)

Subtractive 2 color: Bi-pack, mordant toning

Spicer-Dufay

Additive 3 color: Line screen (réseau), 35 mm reversal
For a description of Spicer-Dufay see detail page on Dufaycolor)

78 Images in 2 Galleries

Splendicolor

Subtractive 3 color: Beam-splitter, double-coated film, bichromated gelatin, Pinatype

Super Anscochrome Daylight, type 225

Subtractive 3 color: Chromogenic monopack, reversal, 16mm
See Anscochrome and Super Anscochrome Tungsten, type 226.

Super Anscochrome Tungsten, type 226

Subtractive 3 color: Chromogenic monopack, reversal, 16mm
See Anscochrome and Super Anscochrome Daylight, type 225.

Supercinecolor / Natural Color

Subtractive 3 color: Color separation, duplitized film, third layer added

Svema CO-T-22 D

Subtractive 3 color: Chromogenic monopack

Svema CO-T-90 L

Subtractive 3 color: Chromogenic monopack

Svema DS-1

Subtractive 3 color: Chromogenic monopack

Svema DS-2

Subtractive 3 color: Chromogenic monopack

Svema DS-3

Subtractive 3 color: Chromogenic monopack

Svema DS-4

Subtractive 3 color: Chromogenic monopack