Wondering if there were any good third-party lenses made for the Contax 167mt that used the MM exposure functions. I have a Sigma 35-70mm with a green f22 that was on an fx-108 program, but don't know if it has the lug that the MM zeiss do... Got me to thinking if there were any other lenses that were made for this mount that would enable usage other than AE mode without an adapter involved...
You should be able to look at the mount and see the MM tab. If a lens has it, you should be good.
I don't have any pics of the mount with the MM tab handy but it's not difficult to identify.
I had a Sigma 18-35 that was MM-enabled. It was a pretty good lens - not as good as the Zeiss primes, of course, but for bang-for-the-buck you couldn't complain.