Hydrotypie / Hydrotype

Subtractive 3 color: dye transfer, still photography and film
“In the imbibition process, a dye image is transferred from a gelatin relief image to a receiving layer made either of paper or film. Charles Cros described this method of ‘hydrotypie’ transfer printing in 1880 and suggested it ...

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Orthochromatic stock

b/w photography: orthochromatic b/w stock, still photography
“In 1873 Dr Vogel discovered that by adding dyes to the sensitive material, its sensitivity could be extended, so that it would record green as well as blue. The new ‘orthochromatic’ plates were available commercially from 1882. The ...

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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 ...

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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.

Heliochromy color separation

Subtractive 3 color: assembly process, pigment process, still photography
“Carbon printing was originally a monochrome process. It was invented and patented by Alphonse Poitevin (1819–82) in 1855 and was the first practical printing method with pigments. After Poitevin, the carbon process was patented extensively ...

Color theory

Additive 3 color: Additive 3 color, still photography
“In a lecture on the theory of three primary colors, given at the Royal Institution of Great Britain on May 17, 1861, Maxwell presented the first demonstration of a photograph in color. According to the records of that meeting (Maxwell, 1890c, ...

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Heliochromy direct positive

Direct color photography: still photography

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Trichromatic vision

Theory: Color vision
Theory of trichromatic vision proposed by Thomas Young.

Kingston Process

Additive three color process: rotary filters
Three black-and-white color separations were printed consecutively on one film strip and projected through the corresponding color filters, thus combining to one color image on screen.

Belcolor

Subtractive 3 color: pigment process, still photography
“Introduced in the mid-1930s by George Murphy, Inc., of New York City, Belcolor was considered one of the simplest ways to obtain color transparencies, as it required no special equipment or expert technique and could be used successfully ...

Condax-Dytrol

Subtractive 3 color: dye imbibition process, still photography
“Around 1940, Condax-Speck, Inc., of New York started to market dyes and mordant for the Condax-Dytrol system of dye imbibition printing (Fig. 4.19). The system, developed by company owners Louis M. Condax (1897–1971) and Robert P. Speck, ...

Raylo

Subtractive 3 color: pigment process, still photography
“Raylo was a material developed by Hiram Codd Joseph Deeks (1880−1952) of the American Raylo Corporation, New York. It was introduced in 1922 for a printing service for users of the Raylo Camera, a one-shot camera that made three negatives ...

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Finlay Positive Color Screen / Finlaychrome

Additive 3 color: regular mosaic screen, combined system, still photography and film
“The launching of a combined version of the product called Finlaychrome was announced in 1931 but was still unavailable three years later; it is unclear if it was ever marketed.28 Instead, it seems that the company produced a viewing screen ...

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Autotype Dyebro

Subtractive 3 color: dye imbibition process, still photography
“Introduced around the same time as Colorsnap and Uvatype, Autotype Dyebro combined the three-color carbro and dye imbibition processes. The method was invented by Owen Wheeler (1859–1932) and commercialized by the Autotype Company in about ...

Fuji Dyecolor

Subtractive 3 color: dye imbibition process, still photography
“Around 1975, Fuji Photo Film Company introduced Fuji Dyecolor, a dye imbibition printing service available only in Japan. A feature of the process was that the transfer of the dyes was done automatically in a special rotary machine developed ...