the 50mm is good for portraits because u can drop that aperture and get that nice shallow depth of field
That was done with my 50mm 1.4 and u can see the trees in the back are out of focus allowing ol girl to pop more. Had this been a night scene with lights the bokeh would have been
As a walk around lense its cool too but because we both have crop sensors that 50mm is more like an 75-80mm and that might not be wide enough if you wanna capture some action around u on the street...I missed quite a few shots that way, thats why I picked up a wide angle lense.