Penrose Carbon Actinometer
Penrose Carbon Actinometer; step wedge numbered 1-10; provision for roll of paper.
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/7616
- Materials:
- metal (unknown), glass, wood (unidentified) and felt
- type:
- actinometer
- credit:
- The Kodak Collection at the National Media Museum, Bradford
