Interesting results, thanks for sharing. Can you also share the report for this set with hand calibration?
What's the reason you suggest it is good for post production but not for home use? Seems that if the reason not to use it is accuracy then there is even less reason to use it for post production facilities?
Did you see this from Steve @Light Illusion about the poor stability / drifting of WRGB OLED? Were you doing anything to try to counteract the panel drift / stability?
The drift chart is pretty shocking. It looks like LG must have some compensation built in which has "steps" causing the sawtooth drift chart behaviour. Pretty ugly.
@bobof check these two pdf documents attached to the previous post. There are measurements of all four modes (hand/irp/lightning/matrix).
I suggest it could be used for post production because it's normal for me to spend 6+ hours on one display in studio to make f.eg. 10 000 points IRP LUT. I can cal other displays in the facility during the process. And one picture mode (Rec 709 or DCI) is usually enought. Typical customer wants to have day / night / HDR modes). That would last forever.
I followed everything that was suggested in Calman workflow, so 30/5 pattern insertion during greyscale and 10/5 during 3D LUT. I know these displays are instable as hell. There are ways to deal with it though. I did some calibrations for movie studios before, to make the display consumer reference, and match studio grade OLED as good as possible. It worked fine, at least the colorist was satisfied. Here's drift chart of OLED E7 i calibrated for German studio:
The pdf report of this cal is attached below. It looks better than IRP in C8 and was calibrated faster. It's of course different case. I used LightSpace and AJA LUT-Box. There is minor oversaturation of cyan colors, but only the dark ones. Red's are on thei'r places and there is no banding. It matched PVM-A250 very well.
My solution to overcome drift (using LightSpace) is to put the display into PC mode, and drive it native resolution (3840x2160p60, RGB) then you can measure with 0 extra delay. I also used drift compensation (1 white frame every 100 patches). Newest LightSpace releases have option to insert black frame to cool the display down. I haven't tried that yet. Calman is different beast and has other options. I have no idea which one is better since Calman can't plot drift chart. I can only evaluate calibration results.
First of all thx for sharing your thoughts and results with us. Regarding to your reports and visual tests these aren't good news at all.
Did you use the pattern Inseration mode? And why didn't you run a 42p Grayscale run to improve the low IRE?
Furthermore did you also tested a iRP LUT with less points
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