Can anyone tell me about the 50mm 1.4 Zuikos? I just picked up an OM-2n with a 50mm G-Zuiko, serial number 187735. I am assuming this lens is single coated. How does it compare against the other 50mm 1.4 olympus lenses, such as the later mc versions, in the area of sharpness and bokeh? Also, if by any chance anyone knows, how would it compare with the original 2 cam 50mm R Summicron? I love the lightweightness and design of the Olympus, and I am considering selling my Leicaflex to finance the purchase of more lenses, and maybe an OM-4T. Anyone else compared OM and Leica R gear?