Originally Posted by adrman
What picture mode are you using with these settings, Cinema 1 or Cinema 2?
FWIW, I don't think it matters for those two. I think Cinema 1 and 2 look identical for identical settings, and you can use them for day and night viewing, or as I recently have done, for LED Dynamic Control Standard and Low. There are certain scenes in certain material for which Standard yields obtrusive backlight fluctuations, while Low does not, e.g. in "The Wire", the last few minutes of S04E05, where the kids are going through the vacants with the flashlight. I also noticed it in the last episode of "American Horror Story" that aired. In both cases, switching to Low and replaying the scenes cleared it up. This is not a slam against the TV. So far, this issue has been very rare, and it usually doesn't occur even when I think it might, and I continue to use Standard as, well, standard.
Between Scene choices, there can be dramatic differences in the behavior of settings, and Sony of course doesn't document them, which is frustrating. If you aren't using an old remote with Scene and Picture buttons, with Scene doing the obvious thing and Picture switching between scene sub-modes, e.g. Cinema 1 and 2, it's much harder to A/B them effectively, because going through the main menu system is very disruptive.
One thing I've found very interesting is the black level in Warm 1 compared to all the other color temp choices. For example, load up the "2001" Bluray to Chapter 10, and wait for the little shuttle to appear on its way to the moon. It's at about 33:57. In Cinema 1, with gamma at 0 and everything at their defaults, switch between Warm 2, Warm 1, and Neutral. On my 46HX850, I see the black level go down considerably for Warm 1 compared to the other two, which I think makes fiddling with gamma unnecessary when using Warm 1. I'm also liking the less yellowish tint, and as with my past Sony TVs, I'm back to using Warm 1. I'd also note that the blackness of space in that 2001 scene isn't pure black, but around RGB 20-22, so it should not appear as black as the bars. You can get it that black by fiddling with gamma and/or brightness, but it seems to me it should be slightly visible, especially given the relative dimness of the other objects in that scene.
Anyone else see this difference in black level between Warm 1 and the other color temperature modes? I think it's really strange. I expected going from Neutral->Warm 1->Warm 2 to be somewhat orderly, but Warm 1 sticks out in that sequence, with Neutral and Warm 2 being more similar WRT black level than either is to Warm 1. I don't know which is more correct, but needing to use Gamma -2 when using Warm 2 seems rather strange, also.