Pls advise me if Contax 25/2.8, 50/1.4, 35/1.4, 100/2 (all MMJ) plus 180/2.8 (MMG) can mount and focus to infinitive with a good mount/adaptor? Which brand of mount can work well w/o mirror hits lens pat pat? I keep these lens for many years and I would like to use them in 5DII.