OM-D vs 5D Mk2 Test

Probably, but the crop sensor camera will always loose out when pushing that aperture open. Something many forget about the new lower priced FF bodies is it makes thin DoF available to a wide audience at low cost. Just stick an 85mm f1.8 on that Canon for example shot wide open and there is no equivalence in m4/3. Same if one wanted to use the TSE lenses or high quality teles or any number of other lens/accessory options which don't exist in m4/3 and probably never will.