Details of exhibit
- Exhibition:
- 1909 Fifty-fourth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- The Dallmeyer Telephoto Calculator, for showing magnification and intensity of a telephoto lens at various extensions
- Exhibitor:
- J. H. Dallmeyer, Ltd.
- Section:
- Photographic Apparatus and Material
- Exhibit No.:
- [809]
- Exhibit type:
- Photographic equipment and supplies
- Process:
- [Not Listed] ()
- Award:
- none
