However to answer your question, you will see some visual improvement when you switch that lens to a FF camera. So at the same setting and FL, the bokeh will look better on FF. it does vignette abit though on FF, but not a problem for me. Still using it day in day out. A great lens for street photography when paired with the D600
@ wolfton - this is one of my fav too. And most of the time I use it to take streets aswell.
anyways, can post some of your shots taken from D6oo with this lens ........thanks very much