homocentric lens

Made:
circa 1912 in London

Homocentric lens F.8 21 inch f.l. In a brass mount. Iris diaphragm is operated by a lever projecting from the lens barrel. Is a 4-element lens. Ross c.1912

Details

Category:
Photographic Technology
Collection:
Arthur Frank Collection
Object Number:
1979-559/1366
Materials:
glass and brass (copper, zinc alloy)
type:
homocentric lens
credit:
The Arthur Frank Collection