I am going to cross-post
my original post in this thread, tweaked for generic projector settings. Seems like a lot of new projector/UB420 owners can benefit from this. The UB420 is the BEST player to get for all projector owners (UB820 if your projector supports Dolby Vision). Period.
Panasonic UB420 / UB820, Projectors & SDR2020
The Panasonic UB420 is
the answer for physical 4K media (UB820 if your projector supports Dolby Vision, otherwise functionally identical). With the built-in SDR2020 Tone Mapping, 4K discs behave exactly like HD discs and you never have to deal with projector auto-switching (like JVC with Gamma D or its built-in HDR curve) or any external devices like an HD Fury. The UB420 will make you think you bought a new projector. Configured with the settings below, your projector will not necessarily see a ‘HDR’ signal so it will not auto-switch to a built-in HDR curve (or JVC Gamma D). The UB420 is still interpreting the HDR data off the disc and sending a ‘full range’ signal to the projector so you are not leaving any color or brightness 'on the table'. You get beautiful high resolution and wide color gamut images without the hassle.
The UB420 is worth every single penny and your only regret will be waiting this long to get it.
HDCP 2.2, 4K & HDMI Cables:
HDCP 2.2 & 4K is extremely finicky with cables. I only recommend
this cable. Others will recommend other brands but it must say EXACTLY: "
Certified Premium High Speed HDMI Cable" (which currently is limited to 30 feet). Any variation of that language is not a genuine certified cable and may not work. My previous cable was "4K 60Hz compatible" but did NOT work. If you screw around with cables, you will have problems.
There are no HDCP 2.2 4K certified cables over 30 feet but many people have had long-run success with
these cables if over 30 feet.
No matter what you buy, if it is 30 feet or shorter and does not say EXACTLY "Certified Premium High Speed" you are taking a risk.
Panasonic UB820 Optimal Settings for Projectors (SDR2020):
On the UB820:
Settings>HDMI>Advanced>HDR/Color Gamut Output>
SDR/BT.2020
Settings>HDMI>Advanced>HDR/Color Gamut Output>HDR TV Type>
Basic Luminance LCD and Projector
Settings>Audio>Settings for High Clarity Sound>Front Panel Display>
Off (preference)
On the UB820 During 4K Disc Playback:
Options (remote button)>Video Settings>Optimum HDR Adjustment>HDR Optimizer>
On (preference)
Options (remote button)>Video Settings>Optimum HDR Adjustment>Dynamic Range Conversion Adjustment>
+4 to
+8 (preference)
Regarding HDR Optimizer, you lose some brightness but gain detail in explosions and similar. I started with this off but now have it on. Dynamic Range Conversion Adjustment will depend a lot on your screen size, bigger screens will want more. I have left the other settings at defaults (so far).
On the Projector:
Set your projector to Color Profile>
BT.2020
Set your projector to Gamma>
2.4
If you have a way to save this then do so. You will recall it for any 4K disc. Below are specific instructions for JVC projectors.
On a JVC Projector:
Menu>Picture Adjust>Color Profile>
BT.2020
Menu>Picture Adjust>Gamma>Gamma>
Custom 1 or 2 or 3
Menu>Picture Adjust>Gamma>Correction Value>
2.4
For JVC Projectors, regarding other settings like Iris and Lamp Mode, that is your preference. I chose Iris 0 and usually Low Lamp but High Lamp looks nicer. I set my user modes up for quick switching (press the User Mode before adjusting settings): User1-HD, User2-4K, User3-3D. More about that in my
JVC 4K QuickStart Guide.
Conclusion:
As you can see this is quite simple, but this will really make the most of 4K and your projector. As for streaming, you are still on your own. I really wish there was a simple HDMI I/O box that does the UB420/820 magic to all sources. I do think some of the new projectors are better and handling 4K HDR now (like the JVC NX's) but I know for certain that if you have ever played a 4K disc and thought "gee that looks dark" this is absolutely the solution for you.