Originally Posted by Bacon_67
The 8 and 9 series don’t have a dim picture with no metadata though, so why would LG alter the 7 series tone mapping in one instance but not the other?
Again, you're reaching conclusions that lack connection. I explicitly said, the 2017 models treat "no content" equal to "4000 nits" and they only added MaxCLL tracking (this is a fact!) which, if it's lower than that 4000 MaxMDL value, will result in a brighter tone curve. You keep throwing MaxMDL, MaxCLL, and DTM all into one issue.
One last time: there's three
things LG changed with 2018 models to help with a dim picture for high luminance content:
1) MaxCLL-based tracking
2) later roll-off on high luminance tonemapping curves (e.g. 4000nits)
3) DTM in Game Mode (irrelevant for movies)
They gave us the first change with an update. So for every 4000nits movie that had a smaller MaxCLL value, the picture is not as dim as it used to be for us (this can be measured and I did with actual equipment but the change is so big it's noticable by eye). This is actually the majority of 4000nits movies where this case applies.
For movies that have a high MaxCLL (or no MaxCLL, like games) their number 2 change is what improved the dim picture. We didn't get that.
Originally Posted by Bacon_67
nearly all streaming content I’ve tried, meaning there’s either no metadata or lg is still applying a dim tone curve for 4000 nit content.
Yeah, I'm not gonna write the same answer to you for a 4th time trying to explain it to you. It seems like you misread everything on purpose and then just throw together some words in response. It's getting kind of tiresome.
Originally Posted by nathan_h
I thought the point was that the new dynamic tone curve is like the 2018/19 models and doesn’t get as dim, ie, tracks PQ EOTF more closely up to 100nits instead of rolling off before 100nits, so the bulk of content looks right, in this case less dim, squeezing the highlights into a narrower range
Please re-read my response
I never claimed anything about a change in roll-off. The 4000nits curve still begins its roll-off way too soon (with DTM off), unless there's MaxCLL data indicating a lower value, in which case it will use another tone curve (e.g. the 1000nits one).
And regarding DTM, I explicitly said this was just a suspicion - they might have made it boost shadows not that much in certain instances - something Vincent Teoh mentioned in his review. A change in PQ EOTF tracking is pretty much confirmed (see R.Masciola's quote) and there's clearly a change in DTM behavior as well. If it's actually matching the behavior of 2018/2019 is unclear, someone with more experience with DTM and a 2018/19 TV would need to do some testing. But the tone mapping curves for a specific luminances are definitely not like on the 2018/19 models.
Originally Posted by HD-Master
there is no legitimate reason to use game mode. Someone will counter with “input lag,” but any noticeable reduction in input lag you claim to personally experience is in essence a placebo effect. Can it be measured? Yes. Can you legitimately notice a discernible difference? You wish.
uhhh... I play maybe 3 games a year, so I'm really just a casual gamer, if anything. And using either a controller or a mouse, you can ABSOLUTELY tell the difference between Game Mode on and off. Especially with a mouse. Even just moving the mouse pointer on your screen will make it apparent, lol. This is very noticable when gaming and is no fun.