Stanley's Actinometer
- maker:
- William Ford Stanley
Stanley's actinometer (waistcoat pocket-type), c. 1886, London.
Details
- Category:
- Photographic Technology
- Object Number:
- 1927-940
- Materials:
- brass (copper, zinc alloy), glass and paper (fibre product)
- Measurements:
-
overall: 14 mm x 32 mm, .017 kg
- type:
- exposure meter and actinometer
- credit:
- Watkins, Alfred
