Optimus exposure indicator made by Perken
Optimus exposure indicator made by Perken, Son and Rayment, London. Designed by Howard Farmer. Celluloid slide-rule calculator. Calibrated: subject; f no. time. Factors given for time of year and day. Metal slider.
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/578
- Materials:
- metal (unidentified)
- type:
- exposure meter
- credit:
- The Kodak Collection at the National Media Museum, Bradford
