HDTVTEST (Vincent Teoh) Discussion Thread

[Scottishguy]

A dedicated thread for discussing everyone's favourite Mandarin speaking Mancunian and, his YouTube channel, HDTVTEST. *bing*

[zen007]

Vincent attempted to carry out some nice analysis of 4K UHD titles recently using as much objectivity as possible.

While it is expected that a 4K UHD will perform better than a blu-ray, the pertinent questions are in what way and by what degree. I expect a 4K UHD to deliver on at least 2 of the 3 key parameters (if not on all) below (esp. considering its "premium" format tag over the blu-ray):

a) Resolution
b) WCG
c) Dynamic range

If Vincent is expected to engage with us, I would like to know what his benchmarks are for the respective categories.


For catalog titles, there could be a few exceptions as a 4K restoration using the latest technology would improve an old transfer in general.

[chip75]

Have you got many 4K releases that aren't 4K, zen007?

If we look at one criteria, say HDR (lets call this tier HDR500) how would we evaluate it? How long must the content hit 500 nits? Are credits and titles included? what about subtitled films?

[Fendergopher]

This is at least a better solution than filling up threads with mostly off-topic discussions. Apart from this "Fake HDR" debacle I'm not sure what there really is to discuss here though, at least for now.

[Scottishguy]

Originally Posted by Fendergopher

This is at least a better solution than filling up threads with mostly off-topic discussions. Apart from this "Fake HDR" debacle I'm not sure what there really is to discuss here though, at least for now.

Oh Vincent is never short of a talking point. Hopefully he can be encouraged to come back and discuss stuff.

[zen007]

Originally Posted by chip75

Have you got many 4K releases that aren't 4K, zen007?

I am mainly talking in terms of DI for category "a". For e.g. does Vincent consider transfers with 4K DI as the benchmark? If yes, then a transfer with a 2K DI may need to do well in the rest of the categories to be considered among top discs (or do we need a new label?).

If we look at one criteria, say HDR (lets call this tier HDR500) how would we evaluate it? How long must the content hit 500 nits? Are credits and titles included? what about subtitled films?

Before we go down that road, we need to first see what the benchmark for each category is .... Since the dynamic range is also discussed in stops and if HDR200 is considered base, the next level could be HDR400, and so on. If the base is HDR250, then HDR500, HDR1000 for e.g.

We are not talking about exceptions. For e.g. there is bell curve:




Utilizing it, one can see how the benchmarks perform. I would not consider titles, subtitles (take the film in its original language for e.g.), credits, etc., unless there is a reason to consider those.

Once we know where to get started, the rest can fall into its place.

[Waboman]

I'm in.

[Scottishguy]

https://www.youtube.com/watch?v=aMc_...ature=youtu.be

[chip75]

Originally Posted by zen007

Before we go down that road, we need to first see what the benchmark for each category is .... Since the dynamic range is also discussed in stops and if HDR200 is considered base, the next level could be HDR400, and so on.

I'm not sure we need to bring (or why Vincent brought it up) stops (the doubling or halving of light) into the equation as it's more applicable to the point of capture (as it concerns the camera aperture or censor) and not the point of output, which is measured in nits.

[zen007]

Originally Posted by chip75

I'm not sure we need to bring (or why Vincent brought it up) stops (the doubling or halving of light) into the equation as it's more applicable to the point of capture (as it concerns the camera aperture or censor) and not the point of output, which is measured in nits.

I guess to identify the tiers as for e.g. if the base is 200/250 nits, the next tier could be 400/500 nits, then 800/1000 nits, and so on

[chip75]

Originally Posted by zen007

I guess to identify the tiers as for e.g. if the base is 200/250 nits, the next tier could be 400/500 nits, then 800/1000 nits, and so on

I think it would just add something that's not really relevant to the discs themselves, like I said I think it's used more at the capture stage, not the output. Having tiers is fine*, but I'm not sure what stops have to do with it.

Having the correct metadata on the specifications is probably the best start. But like we've said there are those that are fine with varying content and there are those that aren't but may not understand the reasons as to why it is varied (but would still find some value in seeing the highest value on the box).

[Penton-Man]

Originally Posted by Scottishguy

Attempt at trying to create a dedicated thread for discussing everyone's favourite Mandarin speaking Mancunian. Hopefully saving on turning other threads into a dumpster fire.

Should we actually succeed in creating proper dialogue, I imagine someone who's personally in touch with him (bing) will encourage him to engage with the Blu-ray.com community.

^ PM his colleague Boris - https://forum.blu-ray.com/showthread...s#post17790209

[Scottishguy]

Originally Posted by Penton-Man

^ PM his colleague Boris - https://forum.blu-ray.com/showthread...s#post17790209

Done. Thanks.

[img eL]

I want to see Vincent's Steelbook, Slipcover Collection & which ones are his all time favoverites

[Scottishguy]

https://www.youtube.com/watch?v=QiyW...ature=youtu.be

[RoxanneTheThiccWolf]

Rogue One: A Star Wars Story 4K Blu-ray HDR Analysis [SPOILERS] - YouTube

HDR Analysis of Rogue One: A Star Wars Story Ultra HD Blu-ray

[RoxanneTheThiccWolf]

Back To The Future 4K Blu-ray Review - HDR Analysis [SPOILERS] - YouTube

[Waboman]

I watched a UHD disc the other day that had a MaxFALL of 73.😳 73! That would send poor Vincent into cardiac arrest. #FakeHDR

[puddy77]

He's already looked at Mandalorian se2ep1

https://www.youtube.com/watch?v=3HqA...ature=youtu.be

[RoxanneTheThiccWolf]

The Mandalorian Season 2 Episode 1 HDR Analysis [SPOILER FREE] - YouTube