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Author Message   Lrsnrl Tinkerer Username: Lrsnrl Post Number: 24 Registered: 02-2010 Rating: N/A Votes: 0 Posted on Thursday, July 26, 2012 - 09:34 pm:    If I understand correctly you have not freed up the focusing threads but you have unscrewed the entire front lens group from the camera. This is OK since you have to do that to get at the foc- using threads.