I posted this question under the 159 review forum, but i think i should have posted here. Anyway, I have a question regarding mm type and mc type lens with regards to the contax 159.What are the differences? What will be my limitations When using mc lens in the program mode? Will it work properly? I would assume the manual side would still work okay but i don't know. I am new to the 159, ok I'm several years behind, but I'm trying to match up my existing lens collection to my "new to me" Contax 159.Any and all help will be most appreciated, Johnny