I am wondering if anyone has experience using FD lenses on an SBM...with a bayonet to c-mount adapter then to a c-mount to FD adapter. When I put some of my lenses on in this way, I can't focus to infinity (ie. distant objects are all out of focus..even when stopped down.) Is this a problem caused by the use of two adapters? I was told to do it this way by a reliable source, Andrew Alden, so I assume that it can work...maybe the lenses need to be adjusted???
any help is appreciated,