Goerz telephoto attachment change of focal length is operated by rack and pinion

Made:
circa 1910 in Berlin
maker:
C P Goerz

Goerz telephoto attachment change of focal length is operated by rack and pinion. Lens is a negative type. Scale visible in the window at the side of the lens barrel shows the degree of enlargement. C.P. Goerz, c.1910

Details

Category:
Photographic Technology
Collection:
Arthur Frank Collection
Object Number:
1979-559/1510
Materials:
glass
Measurements:
overall: 76 mm 45 mm,
type:
telephoto lens
credit:
The Arthur Frank Collection