I'm attempting to convert a Sigma SD14 to a Canon Ef mount. The Physcial work is close but today while attempting to loosen the electrical contact block at the bottom of the body flange I pulled it out. I went down two layers looking for the receiver but didn't find it yet. I'll call Sigma on Monday but I may need a repair person.
So if you know of anyone who is in to this kind of work please pass their name on.