Und nun noch ein Bewegtbildtest (ich übersetze meinen Text nicht extra zurück):
I was thinking about how to accomplish a comparable test in motion. As I do not have a motion control rig, it would be impossible to move the camera in a repeatable way.
But what I have is a turntable. So I have setup today a new scene with the 3 miniatures on the turntable and recorded a full loop with each codec (BRAW Q0 / BRAW C 3:1 / CDNG lossless).
In Resolve I tried to line up the three shots as close as possible and rendered out the same 11 sec segment of each version to 4608 x 2592px Cineform YUV 10-bit 25fps.
I also tried to render out to Cineform RGB 12-bit - but I could not see any differences, so I went with the smaller file sizes and easier to play YUV encoding.
Because I cannot host 4 GB files, I am uploading them to WeTransfer where they will be online for a week. I can re-upload again later anytime if people want.
So here are the 3 clips:
4608 x 2592px Cineform YUV 10 bit BRAW Q0 and C 3:1
https://we.tl/t-KGiDHN2fdI
4608 x 2592px Cineform YUV 10 bit DNG lossless:
https://we.tl/t-7nBz9vz2qt
Online til May, 30th 2019 / 16:00 CEST
Remember: You will need an installed Cineform codec to play the clips.
I have put all three clips into the playlist of MPC-HC and started to let them play in an endless loop. Waited for a minute without watching so I didn't know which clip was which.
My observations:
Watching the clips downscaled to 1080p on a 24" 1920 x 1200 monitor - no differences can be seen whatsoever. No surprise here.
Watching the clips downscaled to fully height fit into a 34" 3440 x 1440 monitor - no differences can be seen whatsoever.
Watching the clips downscaled to fit into the width of a 34" 3440 x 1440 monitor - tiny differences can be seen - but only if you know where to look for and if you have the possibility to compare to the DNG version. If the clip would be BRAW only - nothing to complain.
Watching the clips at actual 1:1 pixel size on the 34" 3440 x 1440 monitor - differences can be seen if you are used to see 4k. I had no problem to single out the DNG clip anytime out of the three. Again, I have a trained pixel peeper eye, was watching a loop, and knew where to look for differences.
I would say if you record full sensor on the UMP and deliver in UHD, you will never see the difference because you started with an oversampled image.
On the PCC4k this would be another story because you can only record a 1:1 image.
Worst case will be windowed HD on any of the cameras.
When last year I tested my PCC4k in 120fps mode (ProRes) - I was quite surprised that it looked softer than the 120fps from my UM46k. I didn't know back then, that it already got the new debayering, but I immediately saw the difference.
I think BMD can and has to do some improvements on the noise reduction and the way it detects edges. The color haloing on primary color borders is something that needs to be addressed, especially for bluescreen work. It reminds me of the color bleeding of the old 4:1:1 DV codecs. It might be less problematic with greenscreen - but I haven't done any tests on that yet.