TopCon Tokyo Kogaku UV Topcor 1:4 f=135mm Camera Tele Lens Made Japan 11023733

TopCon Tokyo Kogaku UV Topcor 1:4 f=135mm Camera Tele Lens Made Japan 11023733  Pre-owned in great condition with minimal wear.  The UV mount lenses from Tōkyō Kōgaku were produced from the 1960's specifically for the Topcon Wink Mirror S and Topcon 100 Auto/Uni, and further used by the Unirex and the 1970s IC-1 Auto.  These unique lens designs do not have an aperture setting ring, as this is found on the camera body. The maximum aperture of the lens is dialed-in to a camera body mounted control when the lens is first fitted. This sets a maximum aperture parameter for the camera's exposure system. All Topcor UV lenses have a common minimum aperture of f/22.  UV stands for Ultra Violet, as the lenses had a UV coating, and did not need a separate UV filter.  Later variants of standard lenses where marked Hi Topcor.  It appears that the standard lenses all had six elements. It comes with lens, back cover & carrying pouch.  Please refer to the pictures.  What you see is what you get.