Topcon UV lenses
|Mount of UV Topcor 1:4 f=135mm|
image by Vagn Sloth-Madsen (Image rights)
The UV mount lenses from Tōkyō Kōgaku are used on cameras from the 1960's (like the Topcon 100 Auto, the Uni, and Unirex) and the 1970s (like the IC-1 Auto). These unique lens designs do not have a built-in shutter, but instead are mounted directly onto the shutter assembly protruding from the camera body.
- UV Topcor 28mm f/4
- UV Topcor 35mm f/3.5
- UV Topcor 50mm f/2 (2 models including a chromed one for the Unirex, and a Black Hi Topcor for the IC-1 Auto)
- UV Topcor 50mm f/2.8 (Hi Tpocor)
- UV Topcor 53mm f/2
- UV Topcor 55mm f/1.8 (Hi Topcor for IC-1 Auto)
- UV Topcor 100mm f/4
- UV Topcor 135mm f/4
- UV Topcor 200mm f/4
UV lenses were originally made for the Uni. The Unirex was sold with a bespoke silver finished 50mm f/2 lens. The IC-1 Auto similarly came with a bespoke Hi Topcor 50mm lens, where the first versions got an f/2, and later versions got an f/1.8.