Lighthouse optic, from the Eilean Glas lighthouse, Island of Scalpay, Outer Hebrides, Scotland, 1907 Lighthouse optic, from the Eilean Glas lighthouse, 1907 Optics 1907
Kodak 24mm telephoto converter for Cone Ektann lens f/2.7 and f/1.9 for Brownie Movie camera. Coated with engraved depth of field indications. Provision for 32mm filters. Kodak Limited. With clip on front finder frame. Kodak telephoto convertor Cinematography
1 Pocket lens, 2 powers in horn frame, broken Pocket lens, two magnifications, horn frame James Watt's Garret Workshop 1790-1819
18 Small lenses, in paper Eighteen small lenses wrapped in paper James Watt's Garret Workshop 1758-1769
10 Concave glasses ground on outside Ten concave glasses ground externally James Watt's Garret Workshop 1758-1769
SMC Pentax-A f1:2.8 28mm lens No.5336297. Manufactured by Asaki Optical Co, Japan 1987. Fitted to Pentax camera 1989-5030/1. Pentax f2.8 28mm lens Photographic Technology 1987
Small lens to be mounted on magnifier, part of "Klinostik" diagnostic set by Gowllands, England, 1930-1960 Small lens to be mounted on magnifier, part of "Klinostik" diagnostic set Clinical Diagnosis 1930-1960
SMC Pentax-A f2 50mm lens No. 2112638. Manufactured by Asaki Optical Co, Japan 1987. With plastic lens cap. SMC Pentax-A f2 50mm lens Photographic Technology 1987
Accessory for Purma Plus, supplementary lens, no.4, 49 inch, with red edge. Carton With Purma Plus Suplementary Lens Photographic Technology 1950-1959
Canon lens reflex 500mm f/8, in case. Serial No 29395. Fitted to Canon F-1 SLR (1983-5098). Canon lens reflex 500mm f/8, in case Photographic Technology
Lens for 6-inch altazimuth theodolite by Dollond, first half 19th century. Lens for 6-inch altazimuth theodolite Surveying 1801-1850
Eyepiece lens, for use with endoscope. Unknown maker. c.1875-1885 CE. Eyepiece lens for endoscope Clinical Diagnosis 1875-1885
Eyepiece lens for use with endoscope. Unknown maker. c.1875-1885 CE. Eyepiece lens for endoscope Clinical Diagnosis 1875-1885
Accessory, supplementary lens for Purma Plus camera, yellow, boxed Carton With Purma Plus Yellow Filter/ Lens Photographic Technology 1950-1959
SMC Pentax-A f/1;2.8 35mm lens Serial No 6101080. With lens cover. Manufactured by Asaki Optical Co, Japan 1987. Lens case, embossed on top 'Pentax', on bottom 'HA-90B' Japan'. SMC Pentax-A f2.8 35mm lens and case Photographic Technology 1987
Lens for 6-inch altazimuth theodolite by Dollond, first half 19th century. Lens for 6-inch altazimuth theodolite Surveying 1801-1850
Accessory for Purma Plus, supplelentary lens ring, boxed. Carton With Purma Plus Suplementary Lens Ring Photographic Technology 1950-1959
Bi-convex lens of bluish glass 1' diam in swing brass mount on pillar with circular base, 17 1/2" high, c. 1760-1780 Bi-convex lens of bluish glass 1' diam in swing br Experimental Chemistry 1760-1780
