Originally Posted by zombie10k
Robert @ VE confirmed with Panasonic, they are well aware that it doesn't pass bitstream and won't enable it due to being asked not to... likely from the studios. That is a bummer, it would have been the difference between a great player and an amazing player..
I don't really care about this aspect. If I were really concerned about it, I'd just buy an Apple TV 4K and use Infuse (as someone here has already mentioned). Maybe it's because my first foray into trying this was a long time ago with Blu-ray players, and they pretty much all sucked for this type of stuff back then, for various reasons. At that point I gave up on them. I didn't know the X800 was better for this, but it has other problems. I'd rather buy the top 4K UHD BR player to play 4K UHD, and leave the mkv and mov files to something else like the ATV 4K.
My main issue with the Panasonic UB820 is the horrible app interface (which is also present on my UB400 and on the UB900), and the slight audio lag that exists on my system with it in Netflix (that doesn't exist with the UB400). (I have already submitted the bug report.) However fortunately, my new TV has Netflix 4K HDR with Dolby Vision already, so there isn't any point to using Panasonic's Netflix application for me. The only potential gotcha I could see is ARC reliability from my TV, but so far ARC seems to be working fine (after only limited use that is).
Originally Posted by BuGsArEtAsTy
I read somewhere that all OLED displays can deal with up to 1000 nits with its own tone mapping... and then everything else just gets clipped. I'm thinking though that stuff between 800-1000 nits might show up quite differently depending upon the panel, as we have two completely different tone mapping curves from two different companies happening at 801-1000 nits and 1001-4000 nits. But, at this point, this is likely mostly insignificant to 99.99% of the population. I think people (like myself) are just happy to see highlights again, and not having them blown out.
BTW, where are the nit values for the settings documented? I couldn't find that. This article seems to suggest the OLED setting is built for 800 nits:
However, 1000 just makes more sense to me, with tone mapping up to 1000 nits built into the TV.
500: Basic Luminance LCD or Projector
1000: Middle or High Luminance LCD
1500: Super High Luminance LCD
Is it confirmed it's 1000 nits for OLED, the same as the Middle/High Luminance LCD? Or is the setting somehow different?
I note my LG B7 hits well over 800 nits with a 2% window. The LG C8 hits well over 900.
Would my XBR X800E be categorized as a Basic Luminance LCD?
It turns out that although all the OLEDs are LG panels, their built-in approaches to tone mapping differ. I don't know about the tone mapping implementation in Panasonic's OLED TVs, but for LG and Sony, the approach is very different.
See Vincent Teoh's video here:
It would appear that at least with the 2017 models, Sony's approach in its OLEDs is simply to clip everything above 1000 nits, as mentioned in the post above. However, the LG OLED approach is to tone map all the way up to 4000 nits. Note that this approach has a side effect of decreasing overall frame brightness, but this is corrected by LG's Dynamic HDR Low setting which adjusts for this.
IOW, even without using a tone mapping player, you can see tone mapping being performed on the 2017 LG effectively, but with a dimmer picture as it doesn't do the "smart" tone mapping that the Panasonic seems to be doing. See attached pic, which has the Sony on the left with a bright picture but one that clips out all the specular highlight detail, and the LG on the right which tone maps the detail in the shirt well but dims the overall frame. (This is with the Dynamic HDR setting turned off though.)
The reason I bring this up is that this additional detail may affect your use of tone mapping with the Panasonic, or maybe if you have a 2017 LG panel you may decide you don't need to upgrade from a UB400/700/900 at all, since you may be able to rely upon LG's built-in tone mapping along with the Dynamic HDR Low setting turned on.