The autochrome is an early form of colour photography.The vivid colours the photographs have a painterly quality, attracting photographers to create still life pictures? The autochrome process used a microscopic mosaic of coloured potato starch grains dyed green, blue and red (about four million per square inch) on a glass plate.
“When the photograph is taken, light passes through these colour filters to the photographic emulsion,” says the UK’s Science & Media Museum. “The plate is processed to produce a positive transparency. Light, passing through the coloured starch grains, combines to recreate a full colour image of the original subject.”
Autochrome flowers via Europeana
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