Yes tried that – it just seems to scale the clipped levels from 64-940 to 0-123.
I am testing now using SMPTE colour bars. When I look at the Avid output everything is fine on the scopes and I have the bar of ‘super black’ near the bottom right of screen. When I take the test signal into resolve everything lines up however the ‘super black’ bar has been clipped or legalised to black.
Lifting the blacks does not reveal the ‘super black’ bar – it has been clipped off, meaning that any detail that is below 64 or above 940 (super blacks or super whites) is clipped and lost before grading starts.
Choosing ‘Unscaled Full Range’ pushes the white to 1023 and black to 0 meaning any super white or super black is still lost and colour bars now sit at the incorrect level.
Is it possible to import SMTE colour bars and retain the bar of ‘super black’? If this can’t be done it would prove that Resolve is clipping footage (losing detail) before grading even begins.