I am trying to identify this mount. The thread is M58, but it also has a locking pin. It is on a Kilfitt Zoomatar 250mm F/1.3 lens. I'd like to find/make an adapter to Canon EF mount. Is there a name for this Kilfitt mount? I've seen some Kilfitt adapters that appear to have a hole for this pin, however, it is not clear whether they are interchangeable and none were adaptations to the EF momunt. My plan right now is to get a M58 female to EF adapter and use extension tubes to get the flange distance in the ballpark. Any info or ideas welcomed.
Cheers, Joe
Cheers, Joe