The MC or MD 50 /1.7 is a most underated lense, as is the plastic 50 . f2 and 45. f2 , which , 'cos it's tiny and light , tends to do most of the work .
I came to Leica from Minolta , to find a kind of family resemblance , even in 1950s lenses - my MC F1.4 has a greater tendency to flare , but still has that quality - at that time , faster lenses tended to be have a little less contrast ? as a trade off for the extra speed , but I would not give up my really old 58 1.4 auto Rokkor
'cos it's acceptable in the centre , but tails off dreamily at the edges.
It's strange - I found Leica and it revived my '' considered snapshooting '' , then Minolta and those old Rokkors keep turning up in these forums !
dee