Details of exhibit
- Exhibition:
- 1900 Forty-fifth Annual Exhibition of the Royal Photographic Society
- Exhibit title:
- Stellar spectra, including illustration of method of screening to obtain uniform enlargement
- Exhibitor:
- Rev. Walter Sidgreaves
- Section:
- Scientific, Technical and Photo-Mechanical Exhibits
- Exhibit No.:
- 361
- Description:
- The enlargements are corrected for the sensibility curve of the plate by screens which are the reverse continuous spectra of the stars, as nearly as can be obtained from Isochromatic negatives of a coal gas continuous spectrum, shaded part of the time of exposure by a blue glass.
The original negatives are all on Edwards's Isochromatic plates. - Exhibit type:
- Photographic equipment and supplies
- Process:
- [Not Listed] ()
- Award:
- none
