Details of exhibit
- Exhibition:
- 1907 Fifty-second Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Lumière Autochrome Plate. For direct Colour Photography
- Exhibitor:
- Lumière et Fils
- Section:
- Scientific and Technical Photography and its Application to Processes of Reproduction
- Group Title:
- Autochrome Transparencies
- Exhibit No.:
- [646.1]
- Exhibit No. 2:
- (a)
- Description:
- A transparent support, covered with an adhesive matter, receives a coating of grains dyed blue-violet, green, and red-orange. This, after isolation with a waterproof varnish, is coated with a special panchromatic emulsion. Exposure is made as usual, but with the plate reversed so that the light, reaching the sensitive emulsion first, passes through the coating of coloured grains. The plate is first developed, then, without fixing, treated with an Acid Permanganate reducer, rinsed and redeveloped, the result being a positive print in natural colours.
- Exhibit type:
- Photograph
- Process:
- Autochrome (Colour)
- Award:
- none
