Ugh, feel I missed the mark on this a little bit with my lack of research. I sold off my 5Dii about 4months ago in favor of sticking strictly to my m43 kit (OMD, 20mm, 45 1.8)...Super happy with it, but one thing I wanted to experiment more with is portraiture and shallower DoF shots, isolating my subjects. I usually don't go for this kind of photography, but I wanted to explore it more for artistic interest - say, compared to street stuff, which I usually do. I just bought a Oly 75mm..Hasn't gotten here yet, but it was a small fortune. How far off the mark am I going to be from the FF cousins will I be? Seems like people are doing pretty remarkable things with this lens. Thanks!