Em1 mark2 had cross type(PDAF) for what?
You knew all M4/3 lens had Contrast Base mechanism,they will move multiple direction +/-,left/right,in/out for most contrast on subject.
but pd mechanic lens has certain direction,and distance they move once(or least) for focus on subject.
and you want Lumix Phase Dectect,Which lumix lens had direction controller(single chip)?
I do not Know,Now.