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Author Message   Davidj Tinkerer Username: Davidj Post Number: 1 Registered: 02-2012 Rating: N/A Votes: 0 Posted on Wednesday, February 08, 2012 - 05:34 am:    Hi I have a Canon FD 135mm f2.0 lens bayonet mount, with a couple of issues, it does not focus to infinity and has some haze/fungus inside rear element, I suspect the lens may have been incorrectly reassembled at some point, the front section appears to be about 1.5mm forward of where it should be at all focus settings, can anyone on here give any advice on taking apart and reassembling this particular lens? I have some experience of working on other FD lenses, de-clicking mainly but less experience of removing helicoids so far!