I try to make a good capture of a live video with a Canon Mark3 with a Blackmagic Ultrastudio Recorder 3G to Resolume Avenue.
If I connect the Canon Mark3 to a video-projector I can check that the video stream is 1080. I choosed a PAL Output via HDMI in the Canon MARK3 option.
But when I add this stream as a source in Avenue the flux comes to 720x486 in NTSC. I can't change it.
I spent 6 hours watching all documentation about Canon, Blackmagic, Resolume, I can't figure how to solve it

Could you have any idea?
Best regards