2160p/Fourk UhD hdr streaming vs 1080p Bd Sdr thread

[RockyIII]

What I mean is: we got our Samsung TV (Vizio for you) set up, UHD players (Samsung or Panny, whatever) we now try to play some HDR content....Are we still going to get stunning 4K resolution that even a child could tell apart from HD 1080, or are we gonna get a dark, muddy picture, with no detail and with movie scenes that all look like they have all been shot in the dark, due to the HDR to SDR down-conversion?

[RockyIII]

The specs for my 4K TV suggest to be 2.5 to 5 inches away from the screen to enjoy 4K quality...Wow just wow

[Geoff D]

UHD Blu-ray: It's Just Better™

[Wendell R. Breland]

Originally Posted by wallE

Remember 4K resolution is 4 times the resolution of 1080p.

Not true, it is 4 times the pixel density, big difference. UHD is just twice the H and V resolution of 1080. IOW, it can show twice as many fence post as 1080, not four times as many.

[RockyIII]

Originally Posted by Wendell R. Breland

Not true, it is 4 times the pixel density, big difference. UHD is just twice the H and V resolution of 1080. IOW, it can show twice as many fence post as 1080, not four times as many.

But "4 times the resolution of 1080p" has such a nice ring to it

[Wendell R. Breland]

Originally Posted by RockyIII

But "4 times the resolution of 1080p" has such a nice ring to it

Unfortunately crap like that comes from the marketing side of those corps and not the engineering side.

[RockyIII]

Originally Posted by Wendell R. Breland

Unfortunately crap like that comes from the marketing side of those corps and not the engineering side.

...and yet, we eat it right off their hands

By the way, do UHV TVs with HDR look 4 times as dynamic in resolution? I was wondering...

[ray0414]

Originally Posted by RockyIII

...and yet, we eat it right off their hands

By the way, do UHV TVs with HDR look 4 times as dynamic in resolution? I was wondering...

Only if the disc is native 4k, which most of them are not.

[RockyIII]

Originally Posted by ray0414

Only if the disc is native 4k, which most of them are not.

I am going back to VHS

[pawel86ck]

Geoff D@ so you can really see difference in colors (BD vs UHD), or improved dynamic range compared to BD's even on your SDR HDTV?? That would be something

[Geoff D]

Yes to both.

[Crimsoncleaver]

Originally Posted by Geoff D

Yes to both.

I agree also.

Skin colour especially looks so much better and details in dark and light areas are more visible. Overall just so much more realistic detail.

[RockyIII]

I spoke to several people who have tested both HDR and SDR and the difference does not seem to be crucial.

[Pieter V]

What about the 'notorious flare' in Mad Max: Fury Road?

[infiniteCR]

Yes, good question Pieter, it should be red no?

[Crimsoncleaver]

Originally Posted by Pieter V

What about the 'notorious flare' in Mad Max: Fury Road?

What scenes is that in? Will have a look too.

Also, what scene is the disappearing sun in?

[jh1123]

Originally Posted by Crimsoncleaver

What scenes is that in? Will have a look too.

Also, what scene is the disappearing sun in?

The flare is around the 18min mark. They fire two flares in the air which on the Blu Ray and theatrical presentation were red and yellow. But the red flare appears orange in the UHD (at least on the samsung player).

I think the best moment for the sun is right when they're leaving the canyon, after the motorcycle chase.

[Crimsoncleaver]

Originally Posted by jh1123

The flare is around the 18min mark. They fire two flares in the air which on the Blu Ray and theatrical presentation were red and yellow. But the red flare appears orange in the UHD (at least on the samsung player).

I think the best moment for the sun is right when they're leaving the canyon, after the motorcycle chase.

Thanks, if I have time this morning will take a look or first thing back from work.

[Geoff D]

The sun is most definitely there on the canyon scene with my SDR converted ouput, it's right at the start of chapter 9 or 10 I think. I mentioned it already but people with Mad Max should check the scene when Furiosa is wailing in the desert, the wide shot looks unbelievably stunning on the UHD.

And the thing to remember is that I'm not using the Panasonic to convert stuff to hit a simple crushed 100 nit output (which is what I think the Samsung's automatic conversion is doing), I've tweaked it to preserve as much of the dynamic range as possible for my particular TV. And because the TV can manage a decent amount of dynamic range (up to 400 nits brightness) about the only thing I'm missing out on is the searing 1000 nit brightness of specular highlights, although I'm still recording them as being 3 times brighter than SDR Blu-ray playback (which is logical since I'm using 100-nit peak settings for normal Blu-ray and 300-nit peak settings for UHD Blu).

I'm a believer.

[bruceames]

Originally Posted by Geoff D

The sun is most definitely there on the canyon scene with my SDR converted ouput, it's right at the start of chapter 9 or 10 I think. I mentioned it already but people with Mad Max should check the scene when Furiosa is wailing in the desert, the wide shot looks unbelievably stunning on the UHD.

And the thing to remember is that I'm not using the Panasonic to convert stuff to hit a simple crushed 100 nit output (which is what I think the Samsung's automatic conversion is doing), I've tweaked it to preserve as much of the dynamic range as possible for my particular TV. And because the TV can manage a decent amount of dynamic range (up to 400 nits brightness) about the only thing I'm missing out on is the searing 1000 nit brightness of specular highlights, although I'm still recording them as being 3 times brighter than SDR Blu-ray playback (which is logical since I'm using 100-nit peak settings for normal Blu-ray and 300-nit peak settings for UHD Blu).

I'm a believer.

I wonder though, although HDR10 is mastered at 1000 nits, how many of those highlights actually get close to that? Probably most of the highlight only get up in the middle range anyway 400-600 nits. After all, the new DV TVs only get up to that, and people are going gaga over bit rate starved VUDU HDR content. So it makes me wonder how much of this upper end actually being used?

Is the difference in brightness between a 20 watt light bulb and a 200 watt light bulb the same proportionally between 100 and 1000 nits?