Above:Ten of the most common Topcor RE lenses.
Topcor RE 4.7/87-205mm, RE 5.6/200mm, RE 3.5/135mm, RE 2.8/100mm, RE 1.4/58mm, RE 1.8/58mm, RE 3.5/58mm Macro, RE 2.8/35mm, RE 2.8/28mm and RE 4/20mm
Topcor R and RE lenses are highly collectible items - especially the rare lenses such as the RE 1.8/85mm, R 2/135mm and R 2.8/300mm.
Topcon has been introducing fast telephoto lenses years ahead of Canon and Nikon. Both the R 2/135mm as well as the R 2.8/300mm came to the market in 1957.
Sadly, several interesting constructions - among them a 4/7mm circular fisheye, a 7/1000mm reflex lens, and a 11/1000mm super tele with automatic diaphragm - never made it to the market.