50mm lens with lower contrast?
I've been lurking about for a couple of weeks after making the mistake of accepting a friend's offer of the use of an M6 + 35mm Summicron for a day of shooting in Baltimore. I fell in love with the M6's handling and discreetness, but found the 35mm a bit wide and too sharp/contrasty for my vision. I prefer the look of my 1950's vintage Rolleiflex with its f/3.5 Xenar; somehow sharp enough but gentle at the same time.
Any suggestions for a compact 50mm lens that will give me that look that I like? Hopefully, nothing too esoteric (ie hard to find), please.
BTW, I shoot B/W only and still print in the darkroom.