I have place the Zuiko 150mm f2.0 on my OMD with the MMF-3 adapter. The image quality is amazing in manual focus. In AF, I always have front focus, approximatively 2cm per meter (thus 1 inch every 3 or 4 foots), at short or long distance. I have seen that it could be sperical abberation, but no difference at f2 or f11 ! The error seems regular, would it be possible to make a adjustment on the lens ? Thanks in advance.