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Author Message   Ronnies Tinkerer Username: Ronnies Post Number: 21 Registered: 09-2009 Rating: N/A Votes: 0 Posted on Wednesday, June 15, 2011 - 02:47 am:    Thanks Glenn. Focus operation is fine it's just the whole lens seems to rotate slightly on the mount. Only the black part where the three screws holding the bayonet ring in are doesn't rotate. I'll leave well alone I think. Ronnie