Johnson Standard Exposure calculator
Rotary calculator; white plastic; BSI/Sch scale, weather, subjects, aperture and speed settings; in leather pouch with film speed conversion table.
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/6660
- type:
- exposure calculator
- credit:
- The Kodak Collection at the National Media Museum, Bradford
