ZM 1.4/35 is a truly outstanding lens! Never tried it on stock A7x body, but on Kolari modded camera, and ZM being designed for digital sensor, it shines WO, stopped down, close/mid/infinity and whatever you desire.
Couldn't agree more, Jack! Wide open, this lens is sharper than my Loxia 35 @f2, and stopped down is totally incredible! But it's more than that, though...its just, well, brilliant in every aspect!!
G