Autochrome

Autochrome
Georges Chevalier · CC BY 4.0 · source
Name	Autochrome
Invented	1903–1907
Makers	Lumière brothers
Country	France
Introduced	1907
Discontinued	1935
Medium	Photographic color transparency

Autochrome Autochrome was the first commercially successful color photography process, introduced to the public in 1907. Developed and marketed by the Lumière brothers, it established a practical method for domestic and professional color imaging during the early 20th century. The process influenced contemporaries in Kodak, Agfa, and later innovators at Ilford and shaped visual culture in France, United Kingdom, and the United States.

History

The development of Autochrome emerged from experiments by Auguste Lumière and Louis Lumière alongside earlier work by James Clerk Maxwell and inventors in Germany and United Kingdom. Following laboratory tests between 1903 and 1907, the Lumières launched the product at the Salon de la Société Française de Photographie and marketed it through their firm, Lumière. The process rapidly found adoption among professionals such as Albert Kahn and amateurs connected to salons like the Royal Photographic Society. During the First World War, Autochrome was used by photojournalists documenting fronts and home fronts in Belgium and France, while postwar photographers in Germany and United States exploited its color capacity for advertising and portraiture. By the late 1920s, competitors from Eastman Kodak and Agfa introduced alternative methods, culminating in Autochrome’s discontinuation in 1935 as color film technologies from Kodachrome and companies in Germany and United States advanced.

Technology and Process

Autochrome employed a subtractive additive screening method based on a mosaic of dyed potato starch grains coated on a glass plate. This approach built on color theory developments by James Clerk Maxwell and practical screening ideas advanced by researchers at Royal Institution affiliates. The plate included microscopic particles dyed orange-red, green, and violet-blue, which acted as a filter mosaic, overlaid by a panchromatic silver halide emulsion. After exposure in cameras made by firms like Ica and Zeiss, development produced a positive transparency visible when light passed back through the starch mosaic. The technical sequence—exposure, development, reversal bleaching, and varnishing—was standardized in Lumière instructions and echoed in procedures used at facilities such as Kodak laboratories. Autochrome’s reliance on glass bases and dyed starch limited reciprocity characteristics, color fidelity, and required longer exposures compared with later multilayer films engineered by Agfa and Kodachrome teams.

Equipment and Materials

Photographers commonly used large-format cameras from makers like Carl Zeiss, Voigtländer, and Ludwig Hermann adapted for Autochrome plates. Tripods by Gitzo and shutters from Compur were typical accessories to manage the long exposure times demanded by Autochrome’s sensitivity. Plates were manufactured at Lumière facilities near Lyon and distributed with boxes bearing company marks and numbering systems reminiscent of catalogs from Kodak and Ilford. Darkroom materials included developers and fixers supplied by chemical houses such as Ilford Limited and dyes from color houses in Paris and Berlin. Projection required lanterns and porthole projectors produced by Gaumont and Edison workshops for public exhibition of transparencies at venues like the World's Fair and photographic societies.

Image Characteristics and Aesthetics

Autochrome images are noted for their painterly grain, warm tonality, and delicate color palette derived from the starch grain mosaic. The mosaic produced a pointillist effect comparable to the paintings of Georges Seurat and optical experiments by Ogden Rood. Color rendition favored muted pastels, with particular strength in flesh tones and landscape greens, echoing palettes in work by photographers such as Sarah Angelina Acland and Albert Kahn’s photographers. The glass substrate imparted exceptional resolving power, while the fixed color filter elements created microstructure visible under magnification—an attribute studied by conservators at institutions like the Victoria and Albert Museum and Royal Photographic Society. Because of slow sensitivity, compositions often featured posed figures and staged still lifes reminiscent of portrait practices in Studio Stieglitz circles and pictorialist aesthetics promoted by societies like the Photo-Secession.

Usage and Applications

Autochrome served diverse markets: amateur photographers in United Kingdom middle-class households, professional portrait studios in Paris, and documentary work by newspapers such as Le Figaro and illustrated magazines like National Geographic. Studios used the process for fashion plates commissioned by houses in Paris and London and for travel albums by explorers and patrons like Prince Roland Bonaparte. Scientific uses included botanical and ethnographic documentation collected by expeditions affiliated with the Muséum national d'Histoire naturelle and colonial surveys in territories administered by France and Belgium. Educational and exhibitionary contexts employed Autochrome transparencies in lectures at universities like Oxford University and public shows at venues such as the British Museum.

Decline and Legacy

Competition from subtractive color processes and multilayer films developed by Eastman Kodak and Agfa eroded Autochrome’s market share in the 1930s. Innovations exemplified by Kodachrome and synthetic dyes engineered in Germany offered faster speeds, easier handling, and mass-market integration, prompting Lumière to cease production in 1935. Nevertheless, Autochrome left a lasting legacy: its images inform collections at the Imperial War Museum, Bibliothèque nationale de France, and Smithsonian Institution; its color aesthetics influenced filmmakers and photographers during the mid-20th century; and contemporary artists and scholars at institutions like Tate Modern and Museum of Modern Art study Autochrome techniques to understand early color perception and conservation challenges. Conservation professionals continue to address fading and glass degradation in historic Autochrome plates, ensuring ongoing access to this pivotal chapter in photographic history.

Category:Photographic processes