Watkins' focal plane meter, c. 1907.
Details
- Category:
- Photographic Technology
- Object Number:
- 1927-948
- Materials:
- metal, chrome plating, glass and paper
- Measurements:
-
overall: 55 mm x 45 mm x 12 mm, .037 kg
- type:
- exposure meter
- credit:
- Watkins, Alfred
