HDR Discussion Thread

[Robert Zohn]

@KarmaNL, Very nice grey scale calibration results!

[Geoff D]

Oh oh, can I play?? The result of my latest HDR recal, average greyscale dE of 0.25:

[Robert Zohn]

Looking ^^ very very good!

[PeterTHX]

Originally Posted by Geoff D

Oh oh, can I play?? The result of my latest HDR recal, average greyscale dE of 0.25

Is that with your settings a few days ago on the Z9D thread?

[Geoff D]

Yes, but with white balance corrections not stated because they really do need to be set for each TV individually. That said, the AVF video they did on their calibrated settings from last year (which I've only just seen) recommended setting the Blue gain down to -5 in the 2-point correction and that's exactly what I set mine to as a result of my calibration so that's a very good start.

[Penton-Man]

Originally Posted by KarmaNL

tweaks

With results like those pictured above , we (not just the alliance - https://ibc.gallery.video/ibctv/deta...age=0#t=56m56s )

could form our own non-profit Post Calibration UHD alliance of Users with our own logo.

[RockyIII]

Originally Posted by Geoff D

Oh oh, can I play?? The result of my latest HDR recal, average greyscale dE of 0.25:

I wouldn't expect any less after paying half what I paid for the tv itself

Sent from my SAMSUNG-SM-J320A using Tapatalk

[Geoff D]

Originally Posted by RockyIII

I wouldn't expect any less after paying half what I paid for the tv itself

Sent from my SAMSUNG-SM-J320A using Tapatalk

I don't follow.

[RockyIII]

Originally Posted by Geoff D

I don't follow.

Well if I paid as much as pro calibrations run these days I wouldn't expect anything less than a near perfect greyscale

Sent from my SAMSUNG-SM-J320A using Tapatalk

[Geoff D]

Originally Posted by RockyIII

Well if I paid as much as pro calibrations run these days I wouldn't expect anything less than a near perfect greyscale

Sent from my SAMSUNG-SM-J320A using Tapatalk

But I didn't pay for a pro calibration, it's all home-grown using free software and an inexpensive colourimeter/spectro combo. I can run a calibration whenever I like instead of paying £££'s every time for the privilege so that practically pays for itself in effect, particularly as all sets drift over time anyway.

[Penton-Man]

If one is inclined to pay for the service, local home theater enthusiasts in my neck of the woods tend to use Dave:
http://hwcdn.libsyn.com/p/4/a/f/4af5...672afd3fcdfd4e

[Penton-Man]

^ if that link doesn’t go thru for some readers then proceed here – https://coloristsociety.com/ , then to the Podcast section and scroll down to Episode 11

[DanBa]

[ROSS.T.G.]

I have an HDR question. First thing I did after I set up my new panel was pop in my Spears & Munsil disc to check for clipping. The only adjustment I made was tone down contrast 5 clicks since it clipped whites from 240 and tone down sharpness in SDR mode. My question is should I leave contrast as is in HDR mode or apply the same adjustments to contrast as I did in SDR. I also noticed that in SDR sharpness is set at 20 and in HDR it's set at 0. I cannot find a calibrating disc for 4K but I heard there is options.

I own CalMAN and an X-Rite so I'm not new to this.

Thanks

[Penton-Man]

Originally Posted by DanBa

Latest Multi-HDR TV table

I enjoy those tables far more than the hula hoop diagrams, which tend to hypnotize me if given more than a short glance.

[Penton-Man]

Originally Posted by ROSS.T.G.

I have an HDR question....
Thanks

Where’s input from our homegrown and/or professional calibrators? Geoff may be feeling a bit anti-social after yesterday’s dismal showing by CP.
Sorry mate.

[Penton-Man]

Originally Posted by ray0414

Don't know. But I know he's very active on Twitter. His Twitter handle I believe is the same as here (Dvdmike)

thanks ray.
If that's our mike, for some reason I had the impression he was younger.

[Penton-Man]

NAB 2017: Colorfront's Bruno Munger - YouTube

From mastering ^ to encoding - http://x265.readthedocs.io/en/stable...ml#version-2-5
(x265's HDR10+ support was contributed by Samsung. It provides the capability to parse a JSON file containing metadata generated by Samsung's tone mapping software)

[Penton-Man]

Originally Posted by Geoff D

....It could be argued that HLG does neither HDR or SDR as good as other forms of those two systems, but in terms of the ephemeral nature of most TV broadcasts (especially sports) and getting HDR into that specific viewing environment then its advantages outweigh its disadvantages IMO.

HTH, and if I've goofed anywhere then there are several actual experts who'll correct me in due course.

You didn't 'goof'.

Alistair Chapman - What is Hybrid Log Gamma HLG (Sony FS5) - YouTube

for hobbyists who can’t afford the ^ FS5, but still would like instant HDR, the FDR-AX700 camcorder is more economical - https://www.bhphotovideo.com/c/produ...camcorder.html

Looking back, I kinda wish my parents had one of these ^ camcorders back in the day to capture my humble exploits on the soccer pitch during highschool, college and club matches (certainly not even remotely in the same stratosphere as Pulisic’s quality - https://www.cbsnews.com/videos/the-young-american/

but I'm still quite happy and proud to have played the game , and in schoolyard picks, I often chose someone challenged with asthma, etc. first to remind other players that everyone has some value and winning is not of paramount importance....it's heart).

[Geoff D]

I've got asthma, I always got picked last at footy. Now I'm not much good with my crook leg anyway, mind you!