jbreher wrote:Jim Simon wrote:Before switching to a 'better' system of a mirrorless camera with the converter, latency was virtually undetectable - about 50ms seemed to line up audio and video. Now it is close to 1 second. The faster solution -- albeit with lesser picture quality -- was a Logitech Brio webcam.
I don't have a number for you, but just to point it out, a direct answer to your question is not sufficient to address your concern.
A webcam has latency between the camera and the computer, via the conversion into the USB format.
Most mirrorless cameras have latency between the camera and the HDMI port, and the converters will add more latency on top of that between the HDMI input and the USB output.
Without knowing how much of your latency issue is in the converter and how much is in the camera, knowing the latency of the ATEM itself would not be sufficient to determine whether or not it would be an improvement.
You could try to estimate this by connecting the HDMI output of the camera up to a TV to see what the latency is like?
Note that you could practically zero the latency of the ATEM itself by monitoring on a separate display via the HDMI output of the ATEM, which would normally have less than one frame of latency (maybe a frame or two if format conversion is going on for some reason), but this would not eliminate the latency of the camera itself, so if the camera latency is too high going out to a TV, the only thing you can do to deal with that is to replace the camera.