Mario69Rossi wrote:I’m not sure why this always comes up in these kinds of threads. There’s always someone jumping in to say you need a calibrated external display, an I/O device, and a bunch of other gear. Not everyone is editing for Hollywood, some people just want something that looks decent enough with what they have. If someone’s editing on a MacBook Pro, it’s probably because it’s convenient. Nobody in their right mind is going to travel around with a laptop, a Blackmagic I/O box, and a reference monitor just to tweak a YouTube video or a quick freelance gig.
Oh, yes we do.
Read page 2870 of the Resolve 19 manual, "Limitations When Grading With the Viewer on a Computer Display." This explains why it's unwise to try to use a computer display for final color correction. The same problem also exists with the "Clean Feed" output, since it's not color managed.
Don't try to make judgements on uncalibrated GUI displays. That will lead down a perilous road of pain and suffering... I think even more so with uncalibrated Apple XDR displays. And if you do look at anything in the GUI display, don't don't rely on it for determining color decisions.
The Clean Feed can be perfectly adequate if you're only editing in Resolve and don't need to make any precise color judgements on the fullscreen preview display. If you do need to see accurate color, you really need a color-managed output with a Blackmagic UltraStudio or Decklink adapter, plus an external calibrated display. And to calibrate it, you need proper test signals, probes, and software outside of Resolve to ensure that it meets normal industry standards.
Steve Shaw of LightIllusion has a good essay on the importance of using grading displays for judging color:
https://www.lightillusion.com/grading_displays.htmlIt's dicey to try to try to judge anything on a MacBook Pro XDR display (I'm staring at one right now), but it's not horrible if you select the "HD Video BT1886" preset, turn off "Automatically Adjust Brightness," turn off TrueTone, and turn off Night Shift. It's not ideal to color grade on, but it's not a terrible Rec709/gamma 2.4 real-world display.