Originally Posted by CadeFoster
Thanks for the info. I just have a couple more questions regarding hdr. I use Cinema home for DV and noticed that the colour gamut is locked into "wide". I thought the correct setting was auto as extended or wide just oversaturates the image?
For SDR content, yes "auto" is correct.
For all HDR content, whether it's HDR10, HLG, or Dolby Vision - the spec says rec.2020 which is a much wider gamut than is possible with this panel. "Auto" will still switch correctly from rec.709 to rec.2020 and back. You should basically always leave it on Auto if you have any choice in the matter.
In some Picture modes, like Game mode, it's fixed to Native (wide) gamut and only a calibration can fix this for both SDR and HDR.
You say that you see the colour gamut locked into "wide" in the "Cinema Home" Dolby Vision Picture mode. But if that menu display entry is locked out, there is nothing you can do about it. It may just say that, but actually be set to "Auto". Measurements with a meter would reveal the answer. Either way, if you are using "Cinema Home", that's the least of your problems. "Cinema Home" is very inaccurate across the whole EOTF and will not accurately display the content as intended.
The "Cinema" Dolby Vision Picture mode, the most accurate one out of the box, also reports a greyed out "Wide" colour gamut entry.
Also, for hdr10 I use technicolor expert and see that the default colour temp is warm 1. I know warm 2 is usually thought of to be the way to go so should that be changed for the technicolor expert preset, or left at warm 1? I'm on the new 5.10.03 firmware if that makes a difference. Thanks again.
Technicolour Expert Warm1 uses a special custom whitepoint: x=0.3000 y=0.3270 which is different from the normal D65 whitepoint used for all other colour temps in all modes. If you,
, are a professional Hollywood colourist and you want a whitepoint which is a perceptual match with the Xenon DCI Cinema Projector - ie you are mastering content designed to be projected on that system, and not for the home - then you can use Warm1! It has no practical use for the home, other than fun!
It's interesting in the sense that it's the first time a consumer TV has had a custom whitepoint, and there was some publicity about it at the time. LG likes the "kudos" it gets from Hollywood using their TVs for colourist work.