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Author Message   Mikeguyver Tinkerer Username: Mikeguyver Post Number: 32 Registered: 08-2007 Rating: N/A Votes: 0 Posted on Thursday, November 25, 2010 - 07:58 am:    Hello, I have a Carl Zeiss Jenna 2.8/50 silver lens that needs major cleaning. It was sitting out in the open for years-lot of dust on the lens and focusing is stiff. I have searched the web to find any information on disassembling the lens. Your input is appreciated. Mike