Sun Jul 25, 2021 7:01 pm
OK, quick overview of my setup:
ATEM Constellation running at 1080p59.94.
Main cameras are combo of URSA and Micro Studio cams.
We added 3 BMPCC 6K Pro's for our stage cams with the plan to be able to control them via software control.
We have the Bi-Directional converters, and the control part works.
My issue starts with the video output.
By default, running the camera at 6K (BRAW), I get bars at the top and bottom of the image from the camera (because the full 16:9 6K only goes to 50fps), and I loose all control to change output settings beyond the BRAW options while the SDI-in for the control signal is connected to the Bi-directional converter. But I can control the exposure, etc from the software control.
If I disconnect the SDI-In, I can change settings on camera again to UHD to get 59.94 and no letterbox (and a heck of a crop factor I'm not a fan of, but whatever), but obviously I loose software camera control.
With the SDI-In disconnected I found I could get a proper output image by changing to ProRes (since apparently I can't have BRAW on the UHD setting). I was really happy, until I realized that as soon as I plug the converter in it switches over to the letterboxed 6k BRAW again.
I understand part of the issue is that I am running 59.94, and at 6K (16:9) the camera can only do 50 fps, but why is UHD not possible with BRAW? Why does the camera switch to BRAW when camera control is connected?
Am I missing a setting in-camera or switcher that would allow me to get un un-letterboxed 16x9 image at 1080p59.94? I was pulling my hair out the other day trying to figure out what was going on.
ATEM Constellation running at 1080p59.94.
Main cameras are combo of URSA and Micro Studio cams.
We added 3 BMPCC 6K Pro's for our stage cams with the plan to be able to control them via software control.
We have the Bi-Directional converters, and the control part works.
My issue starts with the video output.
By default, running the camera at 6K (BRAW), I get bars at the top and bottom of the image from the camera (because the full 16:9 6K only goes to 50fps), and I loose all control to change output settings beyond the BRAW options while the SDI-in for the control signal is connected to the Bi-directional converter. But I can control the exposure, etc from the software control.
If I disconnect the SDI-In, I can change settings on camera again to UHD to get 59.94 and no letterbox (and a heck of a crop factor I'm not a fan of, but whatever), but obviously I loose software camera control.
With the SDI-In disconnected I found I could get a proper output image by changing to ProRes (since apparently I can't have BRAW on the UHD setting). I was really happy, until I realized that as soon as I plug the converter in it switches over to the letterboxed 6k BRAW again.
I understand part of the issue is that I am running 59.94, and at 6K (16:9) the camera can only do 50 fps, but why is UHD not possible with BRAW? Why does the camera switch to BRAW when camera control is connected?
Am I missing a setting in-camera or switcher that would allow me to get un un-letterboxed 16x9 image at 1080p59.94? I was pulling my hair out the other day trying to figure out what was going on.