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Author Message   Monopix Tinkerer Username: Monopix Post Number: 170 Registered: 11-2008 Rating: N/A Votes: 0 Posted on Wednesday, November 17, 2010 - 03:24 pm:    I've never had problems removing them but I think others here have so maybe someone else can help on that one. If there's corroded wires they're unlikely to be in the lens but no harm checking. I was thinking the battery switch, which is in the lens, could be one possible cause of your problems so definitely check that.