I like the pre-asph 50 1.4 . Mine is the later one with the lens hood. This one is sharp enough wide open. I had this Lens in the older body with a clip on lens hood a few years back. Serial no. 24xxx or something, and I seem to recall it had more character, so I liked it more. The bokeh to my eyes was just so special. People say the later one should not be any different ..they're essentially the same lens in different clothing. Anyway the 50 1.4 pre is to me perfect. I had a norton voightlander. Also nice. Very sharp, but the bokeh was not so nice.