I took a walk around the porch w/ the Rokkor PF 58mm f1.4. On the M3 body it handles well. Focusing with the optional viewfinder is reasonably easy.. As you can see the lens is sharp wide open. It is sharp in the corners as well. Bokeh is smooth. Bokeh fringing is minor and CA is insignificant. I did not test for flare. I'm not a fan of shooting into the sun. Contrast is excellent and color rendition is very accurate.