i have atem production 4k and a sony pxw-x70 and i can't make it work in 4k using SDI output .
It works if i use the HDMI port but not with the SDI.
my idea is using the only HDMI port that I have with my mac pro and use the SDI port with the sony camera.
I tried using SDI port with my x70 in 1080i and it works great also with my macbook pro 2012.
thank you in advance for any help