wolves3012
Veteran
I've had several copies of the MD 50mm f/1.7 and they are excellent. I can't remember where I read it (some photography magazine) but back in the day someone did a shoot-out of various top-brand 50mm lenses. The MD 50mm f/1.7 was only beaten by one other, which I can't recall if it was Nikon or Canon and it was only by a whisker. You're unlikely to be disappointed with the f/1.7 and the f/1.4 is not quite as sharp (splitting hairs in real-world situations) and not much faster.