Brian , First off thanks for that link, i have about 10 or so
😀 Contax CZ 1.5 and 2.0 lens that i have been collecting and waiting to be put into use. I would like to send a couple "somewhere" for the conversion.
The pictured Sonnar is in the mail to me so i can not say what it is yet. The seller "owned" a chain of Photography shops around the US blah blah fish eggs and so far has no recollection of the lens.
i am plucking some of his oddball lenses from him and will continue to brow beat him until his memory is adjusted.
OH, how i wish i knew.
i do know that it has some separation on the edge though (darn) , so i may send it "somewhere" for repair unless a test roll looks fine, then i may wait awhile.