Yeah, I own a A7S and a GH4. And for the last week I am comparing the 2 camera's. Made a video, did not upload yet. Without V-log I would always choose the A7S over the GH4 because better color, DR and highlight roll off. But now with V-log. I do not know which camera I like the most. Ok a7s still has some more DR, and slightly better highlight roll off. But is also 1080p, no good slowmo options, crazy low battery life, stupid button and menu design against 4K, good slowmo and good battery and a body that is better all around. A7S II does fix some of those problems, but the pricepoint is killer.