Panasonic UB820/UB9000 4K UHD Blu-ray player

[McGarnigal]

So it has the same current problem as the Sony x700, no "auto" setting for Dolby Vision

[Geoff D]

Originally Posted by DJR662

Ah, good.

Now I can finally see with my own eyes what all this DV fuss is about.

As long as it has the low latency mode...

[elwaylite]

Originally Posted by McGarnigal

So it has the same current problem as the Sony x700, no "auto" setting for Dolby Vision

All their settings are on/off, but they work automatically. Not like the Sony.

[evan201]

Originally Posted by curlyjive

OK so I tested this scene and with bt2020 sdr, on/of makes zero difference. With bt2020 hdr I can see on/off working. My projector doesn't support hdr so everything looks desaturated forcing hdr, but I can see the on/ off control working.

Did you take these screen shots in sdr bt2020 or hdr bt2020?

Do you ever see the system gamma adjustment slider? From what I can tell that control may only be on the ub9000.

This is HDR BT2020 not SDR. I cant stomach stripping out HDR. I just need it to be there mentally.

[evan201]

Originally Posted by elwaylite

All their settings are on/off, but they work automatically. Not like the Sony.

You're 100% that Dolby vision can be turned off? My EPSON 5040 doesn't have DV capabilities and Im enjoying my experience so far with HDR10 so I don't want to mess things up with this update. One day I hope to own a C8 which will have DV and can utilize it then.

[elwaylite]

Originally Posted by evan201

You're 100% that Dolby vision can be turned off? My EPSON 5040 doesn't have DV capabilities and Im enjoying my experience so far with HDR10 so I don't want to mess things up with this update. One day I hope to own a C8 which will have DV and can utilize it then.

Well, if your display does not handle DV, you won't get it either way. Some source devices force you to eat DV if your display handles it, I do not like that. I paid $500 for it, I should be able to choose!

I haven't tested myself, but as far as I have seen so far, if you toggle it off in the menu, you won't get it either way.

[evan201]

Originally Posted by elwaylite

Well, if your display does not handle DV, you won't get it either way. Some source devices force you to eat DV if your display handles it, I do not like that. I paid $500 for it, I should be able to choose!

I haven't tested myself, but as far as I have seen so far, if you toggle it off in the menu, you won't get it either way.

good to know. thanks. update runs over network right? dont have to do any USB thumb drive file hooey?

[DJR662]

Originally Posted by Geoff D

As long as it has the low latency mode...

I'm looking at Tomb Raider (2018) in DV right now.

I've copied over all HDR10 settings for DV, so that means contrast set to 86. Would that be alright or better to leave it to default max?

What is your general opinion on DV on the Z anyway? Is it worth it or is it mostly just a minor/subtle improvement? And by worth it, I mean is it worth it buying a new AV receiver for since my current one does not do DV?

[trekky76]

Doing the update now! And no, DV should be left on default settings.

[JohnAV]

Originally Posted by DJR662

I'm looking at Tomb Raider (2018) in DV right now.

I've copied over all HDR10 settings for DV, so that means contrast set to 86. Would that be alright or better to leave it to default max?

It says the settings for video output are invalid during Dolby Vision playback so HDR10 settings are not used at all.

Usually a players video or picture settings is disabled when running a DV engine in a player.

[elwaylite]

Originally Posted by DJR662

I'm looking at Tomb Raider (2018) in DV right now.

I've copied over all HDR10 settings for DV, so that means contrast set to 86. Would that be alright or better to leave it to default max?

What is your general opinion on DV on the Z anyway? Is it worth it or is it mostly just a minor/subtle improvement? And by worth it, I mean is it worth it buying a new AV receiver for since my current one does not do DV?

Until someone can actually test DV mode on a Sony, I am not using DV. Not one entity can test Sonys mapping of DV from SDR, like they map HDR10 from SDR.

[panasonicst60]

Originally Posted by Caleb C.

Dolby Vision is now supported with firmware version 1.21

[Show spoiler]

No way! That's a lot earlier than expected. I will have to see if it's available on my player yet later on today.

[elwaylite]

Someone posted at AVS, with DV toggled ON, Netflix is always in DV mode, regardless of format. Thats just like the X700, PS4 and Xbox (both game systems force HDR10).

[evan201]

Originally Posted by elwaylite

Someone posted at AVS, with DV toggled ON, Netflix is always in DV mode, regardless of format. Thats just like the X700, PS4 and Xbox (both game systems force HDR10).

Leaving DV off for sure then. Was getting great HDR 1080 60hz BT2020 12 Bit 4:2:2 fine with Netflix before.

[Bmoney003]

Originally Posted by evan201

This is HDR BT2020 not SDR. I cant stomach stripping out HDR. I just need it to be there mentally.

your NOT stripping out HDR. you are stripping the flag of it so the display doesnt auto expect it to be HDR tone mapping...resulting in dark picture,

it is just nomenclature its just tone mapping to better utilize the nits available in your display....dont think of it as losing HDR cause your NOT

[evan201]

Originally Posted by Bmoney003

your NOT stripping out HDR. you are stripping the flag of it so the display doesnt auto expect it to be HDR tone mapping...resulting in dark picture,

it is just nomenclature its just tone mapping to better utilize the nits available in your display....dont think of it as losing HDR cause your NOT

If in SDR BT2020 and set the display type to Projector, will it still map highlights down to 500 nits with optimizer on? Probably answered 500 times by now. Still grasping.

[elwaylite]

Anyone able to confirm if you have a DV display, and DV toggle is off, it will send HDR10?

[Bmoney003]

crosspost fro Kris:

Originally Posted by Kris Deering View Post
Alright, here is the deal. I think a lot of people on these boards aren't 100% in their understanding of HDR and how it pertains to projectors. Therefore, the following comments APPLY TO PROJECTOR IMPLEMENTATION ONLY!!!

First, THERE IS NO SUCH THING AS SDR vs HDR. The reason you see this moniker is to make it easier to understand the base calibration that should be performed. There is no such thing as taking HDR and making it SDR. There is only tone mapping. Because the projector can only reach a low nit level you have three options: the projector tone maps (HDR GAMMA MODE), a custom tone map (ARVE) or the player tone maps (SDR2020). ALL of these solutions are trying to accomplish the same thing, taking a HDR signal and making it work with a low light display.

Projector tone maps are all based on best guess/research by the company. There is no standard. Arve tool is similar, though I believe he may be taking into account the suggestions made for tone mapping in BT2390. But it is still doing the same thing, it just allows the end user to tailor the curve more to their MEASURED display max and allows choices for aggressiveness. But the Arve curve does some things wrong with color support/desaturation, which you can read up on in the MadVR thread. The SDR2020 is just another tone map that is generated by the player to a specified brightness level (set by the slider). You calibrate the projector to a known state (gamma 2.4) so that Panasonic (or whoever is doing it, Oppo did something similar) knows what the underlying gamma their tone map is being applied to. The UB820 changes the tone map dynamically based on the metadata read from the disc. The Arve curves are setup for specific circumstances (1000 nits, 1200 nits, 4000 nits) and the hope is these will be good enough for most images you watch (and they look quite good all things considered). The Panasonic actually changes its tone map on a title by title basis, so long as the title has different values to change to (MaxCLL levels that vary). This maximizes your light usage on a title by title basis, so long as the information on the disc is right. It also applies the proper color handling, unlike the Arve curves.

The only other option is what you mentioned above, using an Arve curve INSTEAD of the projector HDR mode and then sending a tone mapped HDR signal (HDR Optimizer ON and HDR). This would be applying the Optimizer on top of your Arve curve. The Optimizer would be working with the assumption of a 500 nit display base, but that is also changed with the slider.

I can't think of any reason to do that final option unless you had a projector that would not accept 2020 color unless it was actually seeing an HDR signal (I know this doesn't apply to either the Sony models I've tested or the JVCs). I would recommend using the SDR2020 mode in ALL usage cases that I'm aware of. This would (IMHO) give you the best tone mapping which would be adaptive to the content, have proper color handling, and can be adjusted "to taste" on the fly for content that may need additional tweaking

[evan201]

Originally Posted by Bmoney003

crosspost fro Kris:

Thanks for this!

[trekky76]

Also, HDR optimizer and other settings are not available in DV mode. I did test few scenes and DV does seem to tone map them the way the optimizer does. Also noted an issue with "It" where the skies will display some macroblocking that isn't visible in HDR10. I think the chapter at 48:20 is the best example if anyone else could test.