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Author Message   John_s Tinkerer Username: John_s Post Number: 126 Registered: 07-2009 Rating: N/A Votes: 0 Posted on Sunday, July 28, 2013 - 09:26 am:    Yes both the rear element, and the front cell (this usually comes off in one piece with the two lens elements in a little cell) should just unscrew without dismantling. It's possible to unscrew the front cell and clean the front of the rear element through the open shutter - unless it's really bad when it will have to come out. The trickiest bit is re-threading the rear element back into the body.