Ross Rapid Symmetrical Lens

Photographic Technology

1875-1885

Rapid symmetrical lens by Ross, London, 8 1/2 x 6 1/2 inch, Serial No 30350. Part of the Arthur Frank collection. With dust cap of wood (sycamore?) and leatherette lined and felt. Ross, 1875-1885.

Beck symmetrical lens

Photographic Technology

Beck rapid rectilinear type c.F10 inch f/8-45 in flange.

Beck symmetrical lens

Photographic Technology

1900-1910

Beck Symmetrical lens. F: 11" iris diaphragm f8-64.

Bausch and Lomb rapid symmetrical lens

Photographic Technology

Bausch and Lomb Rapid Symmertrical lens Series II. F7 1/2", iris diaphragm f8-64. In Unicum shutter 1/2/5/25/50/100/B/T. With mounting flange.