Details of exhibit
- Exhibition:
- 1909 Fifty-fourth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Six Prints illustrating the continuing action of yellow and red rays on images on sensitive silver papers.
- Exhibitor:
- H. J. Channon
- Section:
- Scientific and Technical Photography and its Application to Processes of Reproduction
- Exhibit No.:
- 419
- Description:
- In each case the original exposure to white light covered the whole surface, and its result after fixing (the prints are small untoned) appears on the side marked "A." On the portion of the print marked "B" a subsequent uniform exposure under either yellow or ruby glass has been given, by which, as will be seen, the detail of the original, sometimes extremely short, exposure has been greatly developed.
- Exhibit type:
- Photographic equipment and supplies
- Process:
- [Not Listed] ()
- Award:
- none
