Sony announces a7S full-frame mirrorless with 4:2:2 4K video output: Digital Photography Review
I'm no expert on video, but I think that the Panasonic's bitrate is higher, but it is also a micro 4/3 camera while the Sony has a lower bitrate but is full frame. That is what I believe to be the case, anyway. If that is so, I believe that grading might ...