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Author Message   Brianw Tinkerer Username: Brianw Post Number: 13 Registered: 02-2008 Rating: N/A Votes: 0 Posted on Wednesday, May 30, 2012 - 02:23 pm:    Anyone have experience disassembling this lens? I need to: 1. correct the aperture ( 1 stop off, setting ring only shows closing to f:16, not 22 and opens to less than 3.5, but aperture is correct ) and 2. clean the inner front element. Thanks all.