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Author Message   Denny Tinkerer Username: Denny Post Number: 129 Registered: 08-2009 Rating: N/A Votes: 0 Posted on Tuesday, February 05, 2013 - 09:34 pm:    I think that pin is controlled by how much it moves towards the lens by the grooves in the speed ring. When putting the speed ring on, make sure the pin fits into the groove. And as stated, if you haven't cleaned the escapement, that will affect the speeds, especially the slower ones. On my Rolleicord II, the escapement needed cleaning and speeds corrected. Good Luck.