Originally Posted by
Itsguy
This isn’t really the issue, it’s more that iPads, iPhone, and televisions use Rec.2020 or what have you (expect with a P3 colour gamut), basically they work like TV, while PCs and some phones use sRGB meaning the shadow levels look completely different, and things graded on an iMac in P3 could end up looking like anything on another device. Not only that, but QuickTime has a colour space tagging system that is set up with an incorrect gamma for 1-1-1 encoded files that should be Rec.709, playing them far too bright with milky shadows. This flawed system is completely ignored by PCs, as well as YouTube and Vimeo which tag everything 1-1-1 regardless of what it originally was (unless it’s HDR). Even different web browsers will play things differently. So the whole thing is a compete and utter mess, and there’s no way to control colour online. At all. It’s also quite hard to correctly set up a Mac to conform to any standard unless you really know what you’re doing, or it’s an iPad. But this is probably beyond the scope of this thread!