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Author Message   Markluk Tinkerer Username: Markluk Post Number: 5 Registered: 04-2012 Rating: N/A Votes: 0 Posted on Monday, December 10, 2012 - 09:50 am:    I have a 1928/29 Rimset Compur shutter on a Rolleiflex Original K1 (612). All shutter speeds work except the B and T settings. it appears the B/T lever (see photo red arrow) is loose. Therefore, it does not engage the hook (see photo green circle) that moves the shutter blades. I suspect there is a spring missing. Can someone comment where that spring is and how it engages the B/T lever. Note: I borrowed the photo from web but my shutter looks exactly the same.