Originally Posted by aaranddeeman
When it's in HDR mode, it already adds the required contrast. You do not need to bump it.
To test, just bring up the white clipping pattern from AVSHD709 (or any other similar disk), now manually switch between SDR and HDR and you will see.
If you don't have the test disk at hand, just start any bluray movie and try switching between SDR and HDR and you will se the difference.
Hi there !
I've also been tweaking and playing a all lot of HDR movie and I also start enjoying it !
But here is my point of view which is quite different :
1 - It needs to work in eco mode
: because this one is dead silent and I want my PJ to be dead silent
2 - It need to work with all HDR movies
not only bright ones (yes Lucy or Xmen or Kingsmen... ) but also darker ones : The Revanant, Batman V Superman...
3 - I hate having clipped whites
and you get a lot of them with HDR 1 mode - just look at some skies in deadpool or the chapter two of Pacific Rim when they build the wall, the skies are clipped
What I wanted to achieve :
- get an average brightness level
a little under the one I get with the Panasonic HDR --> SDR conversion
- get enough headroom to get a good HDR effect
- have a good lisibility in dark areas
- have enough punch to say : whaouh and not think about the SDR version anymore
My setings :
Epson super white ON
: that avoid the white clipping inherent to HDR 1
Color 55 (to compensate custom gamma curve)
Auto Iris Normal
Custom Gamma Curve
: that's what bringing the magic back to me. Gamma + 2 was bringing brightness but to the expense of greyed blacks and dull image. So I made a custom gamma curve that keeps a good contrast ratio, great low light visibility and global image punch.
I d'ont have a picture of the final gamma curve but it looks like this : I just lowered the values 3 steps down from this image for my final setting.(exept first and last one that remain default)
It may look extreme I d'ont know what the axis value is but this is actually not brighter than Gamma +2 it has the same mid range punch but without the hight black levels of gamma +2 (the graph seems to use another scale...)
It was great for the movies I've whatched so far (Star Treck, Star Trek into Darkness, Deadpool, Pacific Rim, Kingsmen, Batman V superman, The Revenant and Mad Max Fury Road).
I've automated the HDR mode change and memory bank change with my Harmony Remote, I have a specific HDR Movie activity, so there is no hassle any more doing all this.