Will 4K Blu-rays play on 1080p screens? (Please read post)

[51dueller]

Your more knowledgeable with patterns than me. It was more if you'd get a different result hooked up to an actual HDMI 1.3 device rather than a HDMI 2.0b with 1080p input. I stopped the movie and double checked that deep colour was off. Deep colour should just output the chroma at 4:4:4 right? I know the tv does accept a 12 bit 4:4:4 signal. I know with my Sony XBR 830C tv, deep colour just ups the normal 12 bit 4.2.2 to 12 bit 4.4.4.

[AnalogAperture]

This is good to know, I might need to do this for the Blade Runner release since the 4k disc has Atmos >_>

[StingingVelvet]

Originally Posted by AnalogAperture

This is good to know, I might need to do this for the Blade Runner release since the 4k disc has Atmos >_>

I really wouldn't recommend it, the HDR conversion on a plasma would be... interesting, probably.

[rage607]

Hello,

I hope it is ok to use this threat, as my questions fit the title.

I have a samsung full HD tv. It is able to display colors in the range of 0-255 and not only 16-235. (I have my current Xbox One adusted that way too). I know it is still "just" RGB.

I plan to buy the new Xbox One X and have a few questions.
The questions revolve around the 4k (UHD) blu ray playback and not the games.

What I know is, that normal blu rays have 4:2:0 and a color range of 16-235.
Now with the higher resolution of 4k blu rays and the higher color "count", I thought that it is theoretically possible to get a 4:4:4 chroma with 0-255 colors.
But will the picture be downscaled that way and does hdcp even allow it?

I hope you can understand, what I am asking. English is not my first language. If not, I will try to explain it.
Thank you in advance

[StingingVelvet]

Not sure what you're asking but UHDs are still 4:2:0 and 16-235.

[Geoff D]

Originally Posted by StingingVelvet

Not sure what you're asking but UHDs are still 4:2:0 and 16-235.

UHDs are 4:2:0 and 64-940 (10-bit legal levels, not 8-bit legal 16-235). What's being aksed is something that quite a few folks wondered about, that when downsampled to 1080p whether it preserves the higher resolution colour component (which is technically 1080p res in a 2160p 4:2:0 presentation) to enable a full colour resolution 1080p 4:4:4 output.

I always said no because it'd take processing outside of the norm to separate the luminance from the chrominance and downscale one but not the other and then combine them back together. Even if some players do this it they may link it to HDCP 2.2 compatibility to enable the higher resolution colour component, e.g. if I change my Sony X800 player to 1080p (going into my ZD9) then it actually retains the HDR, although I'm not clear at what combo of bit depth and chroma subsampling it's outputting it at. Until we get some kind of 4K test pattern to check the 1080p 4:4:4 theory then the jury's still out.

[Geoff D]

PS

Setting anything in the chain to 0-255 is wrong for a correctly mastered Blu-ray. Even if you set your TV to match so that it looks "correct" again all you're doing is mapping the native 16-235 encoded content out to 0-255, you're not actually gaining any extra levels. Hell, as long as your TV isn't clipping below black or whiter than white information when displaying 16-235 - easily detectable using test patterns - then any content that's encoded slightly out of range will still be resolved on your display. It's stuff mastered with completely the wrong levels e.g. X-Files S8, Road House, Transformers the Movie which requires a wholesale change in levels to fix.

[StingingVelvet]

Originally Posted by Geoff D

UHDs are 4:2:0 and 64-940 (10-bit legal levels, not 8-bit legal 16-235).

Oh, I knew it was limited range I just thought it was the same range. Neato.

[Geoff D]

No worries. This is why there's talk about setting black to 64 in the 0.005 thread, that's not a specific TV brand setting but the actual video level of black in a legal 10-bit video presentation.

[weiland555]

Forgive my total igorance on the subject, but I still have some questions after reading this thread.

I have an older Panasonic plasma, 65GT30, in my main theater room. To go with my smaller 4K TV in another room, I recently purchased an Oppo 203. I would really love to occassionally move that 4K player into my main theater room to enjoy the UHD Blu's with the Atmos soundtracks (my receiver is equipped). Is it possible for me to view the 4K content on my non-4k plasma with it not looking terrible? What settings on the Oppo and/or TV would I need to change?

Thanks in advance.

[StingingVelvet]

Originally Posted by weiland555

Forgive my total igorance on the subject, but I still have some questions after reading this thread.

I have an older Panasonic plasma, 65GT30, in my main theater room. To go with my smaller 4K TV in another room, I recently purchased an Oppo 203. I would really love to occassionally move that 4K player into my main theater room to enjoy the UHD Blu's with the Atmos soundtracks (my receiver is equipped). Is it possible for me to view the 4K content on my non-4k plasma with it not looking terrible? What settings on the Oppo and/or TV would I need to change?

Thanks in advance.

You just need to read the thread really, but in general it depends on how HDR converts to SDR on your setup. Could look okay, could be horribly unwatchable. The Panasonic is supposed to be the best HDR to SDR converting player.

[weiland555]

Originally Posted by StingingVelvet

You just need to read the thread really, but in general it depends on how HDR converts to SDR on your setup. Could look okay, could be horribly unwatchable. The Panasonic is supposed to be the best HDR to SDR converting player.

I see. What if I turned off HDR? All I’m really going for is Blu-ray video quality, with Atmos/X sound.

[StingingVelvet]

Originally Posted by weiland555

I see. What if I turned off HDR? All I’m really going for is Blu-ray video quality, with Atmos/X sound.

You can't turn off HDR really, it's part of the image on the disc. So your player would be converting HDR to standard range, and some players seem to do that better than others. Only one I can speak for is the Sony X800 and on my display it black-crushed like a mother.

[DaveFi]

I have a Philips 7501 and surprisingly enough it does a pretty decent job converting it over for 1080p viewing.

[stigdu]

Originally Posted by weiland555

Forgive my total igorance on the subject, but I still have some questions after reading this thread.

I have an older Panasonic plasma, 65GT30, in my main theater room. To go with my smaller 4K TV in another room, I recently purchased an Oppo 203. I would really love to occassionally move that 4K player into my main theater room to enjoy the UHD Blu's with the Atmos soundtracks (my receiver is equipped). Is it possible for me to view the 4K content on my non-4k plasma with it not looking terrible? What settings on the Oppo and/or TV would I need to change?

Thanks in advance.

Hey Weiland,

I'm currently watching the occasional UHD via an Oppo 203 on a Panasonic P50GT50 with no issues whatsoever. I've left all the settings on the Oppo player at default, and the *only* thing I could say to be a downside at a push is that the UHD might be a tad darker than playing the blu-ray version of the film, but that is easily resolved, and it depends how much of a videophile you are.

I'm just happy to have finally seen John Wick 2 uncut.

[Battail]

Originally Posted by DaveFi

I have a Philips 7501 and surprisingly enough it does a pretty decent job converting it over for 1080p viewing.

hey davefi... can you be more specific on video quality compared to standard blu-ray. I'm running a Benq 3050 1080 proj. and like every one here, trying to find a Dolby atmos get around. what's your rig. any hand shake problems etc. these philips 7501's are still available and at a price I'm willing to pay.

[LordoftheRings]

• https://www.highdefdigest.com/blog/4...1080p-display/

[stigdu]

Originally Posted by LordoftheRings

• https://www.highdefdigest.com/blog/4...1080p-display/

Not my experience at all. Using an Oppo to downcovert all my 4k discs on a Panasonic 1080p TV. Haven't noticed any problems at all with the exception of a pink screen with a Dolby Vision title (which a reboot fixed).

Sent from my SM-G930F using Tapatalk

[PondaBaba]

Originally Posted by StingingVelvet

You can't turn off HDR really, it's part of the image on the disc. So your player would be converting HDR to standard range, and some players seem to do that better than others. Only one I can speak for is the Sony X800 and on my display it black-crushed like a mother.

I just got my first BDP in a Sony S3700, it's non-4K but looks to potentially be from the same line as the X800 (I don't know but it appears alongside the S3700 in the drop down menu for model selection on the amazon product page from the seller I bought from that sells region unlocked players).

I got a non-4K player assuming I didn't need one with a non-4K 32in screen that I'm not intending to upgrade (as well as the S3700 being half the price of a 4K one) but just seen some comparison caps of the old BD and new 4K restoration of Giant and discovering about the possibility of downscaling 4K to FHD after buying the player (I hadn't thought to ask the question if this was a thing let alone consider the advantage having the ability to downscale might provide for getting the optimum version of a movie) so l I am wondering if I should have gone for a 4K player and send the one I've just got back for a refund/to swap.

I was hoping to get Giant on BD but in the caps it looks dark with a blue tone (also a bit more noisy but I assume this is to do with the FHD vs 4K resolution that anything else so not relevant for my consideration) while the UHD disc's colours and tone looks gorgeous by comparison even if the resolution/sharpness doesn't look to be majorly increased which I'm fine with. Apparently other similar UHD titles done by the same company have a similar pink hue to them but to my eyes comparing against the old BD it still seems like a marked improvement.

The UK UDH disc comes with a BD disc but apparently it's the old one so initial hope for that being based off the restoration has gone.

Would you be able to say if the crushed blacks in the Sony player's downscaling might for e.g. outweigh the incorrect colours/blue tone/darkness etc. of a non-4K film that you love? I assume they're distracting and might take you out the viewing experience momentarily but wonder if that outweighs having a poorer older BD edition that's seems too dark/the incorrect colour tone (I'm not using that in a technical sense I don't know the difference between hue and tone etc. I confess) and any thoughts (from yourself or anyone else reading) would be appreciated