The PTZOptics cameras do work with Blackmagic Design hardware.
The main issue we see is that the 3G SDI resolutions do not seem to work. This is due to our cameras outputting 3G SDI Level A and the BMD hardware looking for Level B. As a result, 1080p60, 1080p59.94 and 1080p50 do not work without the use of a framerate converter.
The chart below shows the compatibility with the SDI/HDMI output into a BMD ATEM. The video showing this is linked below as well.