Hi all, A friend of mine found this page from a post house that has done some testing with regards to color shift of Pro Res in qt: http://www.stopp.se/lab-testing-the-pro-in-apple-prores/ Also there is the lutyuv filter in ffmpeg that could possibly correct for this. E.g. (example arguments): -filter:v lutyuv="y=gammaval(0.96),u=gammaval(1.04),v=gammaval(1)" -- -mattias