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Author Message   Renzo Tinkerer Username: Renzo Post Number: 1 Registered: 04-2010 Rating: N/A Votes: 0 Posted on Sunday, April 04, 2010 - 09:34 pm:    anyone have any experience with this lens?... For some unknown reason the lens disassembled itself (separating the front element from the focusing ring) while focusing. When attempting to reassemble the lens it does not screw in because the inner ring of the focusing ring rotates with the front elements... any suggestions to help? thanks