Achromatic lens
- maker:
- William Ladd
Achromatic lens, 2-inches diameter in brass mount, by William Ladd, London, England (unsigned) 1870.
Details
- Category:
- Optics
- Object Number:
- 1872-13
- Materials:
- metal (unknown), copper (alloy), brass (copper, zinc alloy) and glass
- Measurements:
-
overall: 15 mm x x , 59 mm, .085kg
- type:
- achromatic lens
- credit:
- Ladd, W.