Ica Diaphot extinction calculator
Ica Diaphot extinction calculator, made by Zeiss Ikon A.G. Watchform extinction calculator, rotating continuous wedge, blue tinted, moves behind eyepiece.
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/543
- type:
- extinction calculator
- credit:
- The Kodak Collection at the National Media Museum, Bradford