Originally Posted by matpal
Hey guys, I really need some help here. I'm a novice in the AV world, and just had my projector (Optoma UHD 60) calibrated which is hooked up to my Panasonic Ub820.
It was a well respected technician, not some guy from Geek Squad, but I'm afraid things were not done correctly.
He claims that the HDR mapping on the Optoma was poor, so we opted to let the panasonic do it. Fine. However, he set the HDR Color Gamut Output to SDR.BT2020, which would seem to me that it would prohibit he Panasonic from decoding or passing any kind of HDR/Tone mapping to the projector.
Indeed, when you try to access the HDR menu with this setting, you are told that HDR content must be being displayed to access the HDR optimizer. Makes sense to me.
When asked about this, here was the response:
I'm sorry but that makes no sense at all. How can you display an HDR signal when HDR is turned off all the way around, both on the Panasonic and on the Optoma?
I have both the UHD60 and the Panasonic 820 and agree that you should configure it for SDR BT2020. I recommend that you don't let yourself get hung up on the HDR vs SDR thing. Tone mapping is a good thing and you want to take advantage of it on the 820 for the best picture.
Here's the settings I use and it looks great:
"Display Mode: Cinema
Wall Color: Off
Ultra Detail: 3 (unless film grain is present, then I will drop down to 1 or 2)
Dynamic Black: On
Brilliant Color: 2
Color Temp: D65
Color Gamut: Cinema
Color Space: Auto
RGB Gain/Bias Settings:
Red Gain: -4
Green Gain: -1
Blue Gain: 12
Red Bias: 0
Green Bias: -1
Blue Bias: 2
4K60p Output: 4K/60p(4:4:4)
24p Output: Auto
HDMI Advanced settings:
Color Mode: Auto
Deep Color Output: Auto (10bit Priority)
HDR/Color Gamut Output: SDR/BT.2020 (Auto)
SDR/HDR Conv: Off
HLG/PQ Conversion: Auto
HDR TV Type: Basic Luminance
Player Options while playing movie:
HDR Optimizer: on
Dynamic Range Conversion Adj: +6
Noise Reduction: Optional - If it's an older movie with a lot of distracting film grain, I might set all three noise filters between a value of 1 to 3, until I'm comfortable with the picture
Setting the Gamma to 2.4, turning down the brilliant color setting to 2 on the UHD60 and then compensating by setting the Dynamic Range Conversion Adj to +6 really helped get the best picture while also eliminating shimmering that I sometimes see on the UHD60 when I set the brilliant color setting above 3. "