Focus is not perfect. My impression is that the A7RII is more discriminating than the A7R as to what is really sharp and what is the gradual transition to OOF. That means the zone of absolute sharpness seems less than with the A7R, and you'd better not miss it! My blog partner Pascal feels the same way, as does another contributor to DearSusan, so I am pretty sure there is "something there" when focusing manually with extremely high resolution lenses. The "other contributor" has AF lenses (FE, Batis), and says he has no problem watsoever with them as regards focus in AF mode.