Details of exhibit
- Exhibition:
- 1899 Forty-fourth Annual Exhibition of the Royal Photographic Society
- Exhibit title:
- Adjustable Vignetting Apparatus
- Exhibitor:
- Charles S. Southin
- Section:
- Apparatus
- Exhibit No.:
- 412
- Description:
- This apparatus is intended for vignetting by day or artificial light, and can be used with any ordinary printing frame. It consists of two light frames of wood and metal, the lower or metal frame being attached to the printing frame by means of a clasp and milled-headed fixing screw, and having a horizontal movement across the printing frame. The top wood frame, which carries the vignetting card, has a movement in a transverse direction to the bottom plate, and can be raised or lowered to any angle or height by means of screwed studs and nuts, and a spring. A light-diffuser is attached to the top frame.
- Exhibit type:
- Photographic equipment and supplies
- Process:
- [Not Listed] ()
- Award:
- none
