Ross Concentric Lens

Made:
1895-1905 in London
Lens with aperture stop wheel, Serial No 51770. F.16, 15 inch f Lens with aperture stop wheel, Serial No 51770. F.16, 15 inch f

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Lens with aperture stop wheel, Serial No 51770. F.16, 15 inch f
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Lens with aperture stop wheel, Serial No 51770. F.16, 15 inch f
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Lens with aperture stop wheel, Serial No 51770. F.16, 15 inch f.l. Lens consists of two achromatic doublets. Maximum aperture at which it could be used was F.16. Ross, c.1900.

Details

Category:
Photographic Technology
Collection:
Arthur Frank Collection
Object Number:
1979-559/1195
Materials:
brass (copper, zinc alloy), glass and white metal (unknown)
Measurements:
overall: 75 x 100 x 80 mm
weight: 4.73kg
weight: 10.42792lbs
type:
concentric lens
credit:
The Arthur Frank Collection