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Author Message   John_shriver Tinkerer Username: John_shriver Post Number: 33 Registered: 12-2006 Rating: N/A Votes: 0 Posted on Monday, June 02, 2008 - 08:10 pm:    The contract manufacturer of the "RE Topcor" lenses (not the RE. Auto-Topcor lenses) was Cima Kogaku. They were eventually sold as Cimko MT, as well as Exaktar, Quantaray (one of many suppliers for them), Photax Paragon PMC, etc. Cima Kogaku had a patent on a method for making lenses that could accept a wide variety of mounts. In testing, the 200/3.3 RE Topcor lens is repsectable.