Friday, May 08, 2015

Final form of the converted Canon FD 300mm 2.8 in EOS EF mount

This is the adapter used. It consists of a 77-58mm step down ring, and then a 58mm focusing tube, plus a 58-42mm step down ring. The flange distance is then adjustable to suit different situations.

A 58mm tube is used instead of a 42mm tube which I previously acquired, to avoid any vignetting.  A M42 to EOS EF ring with electronic focus confirm is used, it is glued together to ensure proper orientation of the tripod socket.