Demainbray's convex lens
1750
Achromatic doublet lens with a focal length of 52 inches
1780
Horn framed reading lens with trefoiled handle
1680-1700
Optician's trial set of lenses
Reading lens in wooden frame and handle
1650
Lens type PS 0120001 polished and anti-reflection coated by Barr and Stroud Ltd.
1986
Plastic plano-concave lens for a head-up display
1983
Reading lens in leather mount, 1701-1730
1701-1720
Stanhope lens
1829-1845
Stanhope lens of greenish glass
Plastic aspheric lens for the BEA guide weapon camera system
1982
Germanium lens
1980-1986
Pair of safety goggle lenses, with case
Set of opticians trial lenses in wooden box
An achromatic triplet hand-lens (x10) in swing-out nickel plated mount and leather case
Two "Franklin Split Bifocal" lenses: (1) Oval
Photo lens Ross patent airo
Photo lens
Photo lens
Photo lens
Photo lens
Photo lens
Photo lens
"Monarch" stand magnifier with 153x104mm (aspheric) acrylic lens and ivory-coloured supports
1950-1959
Selenium glass signal lens
2a. Patent portrait lens front crown
Cylindrical concave lens, focal length about 75mm
1900-1980
Cylindrical bi-concave lens
1900-1983
Cylindrical plano-convex lens
1900-1983
Lenses illustrating manufacture of Dallmeyer Stigmatic F/6 lens
Lenses illustrating manufacture of Dallmeyer Stigmatic F/6 lens
Watson close-up lens
Burning-lens, mounted at end of a cylindrical box (length 2 ins) of brass silvered
Two green lenses set in a wooden holder
14 lenses
1801-1930
Two biconvex lenses
Lens, blue tinted, D-shaped, English, 1870-1920
1870-1920
Aspheric lens used for slide projectors
1980
Thallium bromo-iodide lens, one of ten, c. 1960
1955-1965
Thallium bromo-iodide lens, one of ten, c. 1960
1955-1965
Thallium bromo-iodide lens, one of ten, c. 1960
1955-1965
Super Takumar F3.5 135mm Lens
Early Single Lens by Ross
Takumar F3.5 135mm Lens
Pentax FA F4 28-70mm Lens
Cooke Wide-Angle Lens
Pentax 110 Zoom F2 20-40mm Lens
Takumar Zoom F4 45-125mm Lens
Cooke Lens 20mm. f3.5
