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Diff EOTF Behavior on JVC DLA RS540 at High End

 
Author Johnbar
User - Mono 
#1 | Posted: 1 Aug 2020 00:36 
Hi all,
I would like to better understand what is going on with my EOTF Diff at the high end on this JVC DLA RS540 and if it's something to be concerned with. LUT is uploaded to a Radiance PRO.

On Diff EOTF, everything looks good (I think) except when we start to go over 80% towards white where things get a little wonky with blue. Clip looks ok though (again, I think). Gamma point here is also smooth, though there is a spike at > 95%. I thought I read an explanation for this once on AVSForum, but I can't seem to find it now.

Is this something to be concerned with?

RS540 Diff EOTF
RS540 Diff EOTF
RS540 Clip
RS540 Clip

Author Johnbar
User - Mono 
#2 | Posted: 3 Aug 2020 01:39 
Disregard this. There was just a bit of excess blue at these points causing my gamma point blue to drop here and manifesting on the diff chart this way.

Author Steve

Mod - Scene 
#3 | Posted: 3 Aug 2020 09:53 
Indeed - if you look at the RGB Balance graph you would see the white point colour temp would be wrong there too.

Steve
Steve Shaw
Mob Boss at Light Illusion

Display Calibration Light Illusion Forums / Display Calibration /
 Diff EOTF Behavior on JVC DLA RS540 at High End

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