Details of exhibit
- Exhibition:
- 1913 Fifty-eighth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Comparison of the Definition
- Exhibitor:
- A. Kapteyn
- Section:
- III. Scientific and Technical Exhibits, Natural History, Colour Prints, Lantern and Stereoscopic Slides
- Exhibit No.:
- 561
- Description:
- given by a well corrected lens and that given by an unissued and unique self-focus lens, constructed by the late Thos. R. Dallmeyer for his personal use shortly before his death
- Exhibit type:
- Photograph
- Process:
- [Not Listed] ()
- Award:
- none
