Q2007Introduced commercially in 1907, Autochrome Lumière used a microscopic mosaic of dyed potato-starch grains over a photographic emulsion to record colour on glass.
The Lumière process spread millions of tiny red-orange, green and blue-violet starch grains across a glass plate, filling the gaps with lampblack and coating the screen with light-sensitive emulsion. After reversal processing, the finished transparency needed transmitted light to glow. Long exposures softened movement and the irregular mosaic lent images a pointillist atmosphere: modern colour arriving through an unexpectedly edible material.


