I cancelled the order of my cx800(EU) and bought a 55ax900 for temp use. I tried to calibrate it but green luminance has quite an error. Even with green luminance set to max it is still lacking. I found that strange as the tv is known for it's accuracy. I used a eyeone display pro (2 years old) profiled against a eyeone pro2 (used 2 times). I used the green/blue led option when creating the profile as per calman instructions here I know that is not for profiling, but i assumed i would need to use that display mode for profiling also. I assume something is wrong here. Either the tv or my sensor? Or maybe I did something wrong, but I have no idea what that could be. Any help would be greatly appreciated. Feeling gutted at the idea that my brand new spectro is not ok.
Yes an i1display pro profiled against a i1pro 2. I did contrast/brightness etc. Went through all the usual steps. Even verified cms afterwards with the spectro, it still had a shortage in green luminance.
Source is an AVlab TPG. I will try both. Like someone said before, does it mean my spectro is broken if the i1display pro without profile does not see the green error? Is there a way to see if the spectro is ok? Except send it back to the US that is.
I cancelled the order of my cx800(EU) and bought a 55ax900 for temp use. I tried to calibrate it but green luminance has quite an error. Even with green luminance set to max it is still lacking.
Here are the readings I have. These are after calibration. Green luminance is at +50 (it's maximum). Am I doing something wrong or could the display be defect? Especially looking at the fact that there is still a 2-3 error with luminance maxed out. In every review they seem to get alot closer. And where does the difference between the first two originate from? I though if I profiled against my spectro it would be as accurate as the spectro, but the errors on the spectro are a bit bigger then on the i1 display pro using the profile I made.
This is my i1 display pro profiled to my i1 pro 2 spectro using the green/blue meter mode in calman.
This is a reading with just my spectro. I did tweak some more results when I measured this, but green was as good as it gets. All errors were in line with the previous screenshot, just a higher error (in the same magnitude as the difference in green in these two pictures). But I calibrated the error out in the other colors.
This is a reading with my i1 display pro, no profile, meter mode green/blue. No adjustments made in comparison to picture 2.
And lastly a reading with my i1display pro, no profile, led lcd meter mode. No adjustments made in comparison to picture 2.
I will. How do I enable advanced mode? Did one of the posts disappear? One about difference between saturation and luminance. I know the difference. Thanks for the help so far.
I started over this afternoon. Put the spectro in contact mode, this should negate room lighting correct? I then did a autocal 2-point WB and autocal CMS. I used BT.1886 as target. Brightness set at +6 and contrast to 75. Backlight set so it measured 45 ft/l. Ran the 2-point autocal. Then I did the CMS work with 75% color, I assumed that that is correct. I did all measurements with just the i1Pro2 spectro. The error is still here. Here are some pictures , seems like something is wrong here. Am I doing something wrong?
edit: Green luminance is maxed out at the moment in the CMS controls.
Can you control the delta LCH for the CMS colors?
In Samsung menu it's called red, blue and green under advanced menu then CMS control.
Have you done the contrast right?
In some cases wrong contrast can do some strange things.
Use DVE test pattern and also you can check clipping in CalMan.
Edit:
I still which to see a greyscale and gamma reading from you.
Also something new today. Cornerbleed in bottoms corners, visible in alot of low/mid apl content. Apologies for crappy video, but my phone doesn't allow for good video, but the problem is visible nonetheless. maybe time for an exchange.
Wow, hero of the day. Thanks alot. I think I might have found something wrong with signal handling of the tpg or the tv. I have it at the native tv resolution in RGB. That gave huge color errors. As soon as i switched to either YC422 or YC444 it was alot better, but then I wondered if the 2160P had something to do with it. So I switched to 1080P/60 RGB and it measured exactly the same as the 2160P YC422 or YC444. So colors are correct in 2160P/YC422/YC444 and 1080P60/RGB/YC422/YC444. What causes this though? An error in the TPG or maybe the tv? Does this also mean that any 2160P source (future UHD bluray player) in RGB would have the same errors in color? Would it simply be fine if switched to YC422/444? When calibrating UHD tv's do you use 1080P patterns or native ones? I would guess 1080P would work until 4K becomes more mainstream? Or would you use the 2160P but in YC422/444? So many questions Thanks in advance.
edit: Only now do I see you suggested this in the start of the thread
Ok, 4:30 am now Profiled my i1display pro against i1pro2 and started calibration. Calibrated to BT.1886. Not sure why the red is off in saturation charts. I think I can dial in blue a bit better. Here's some screens of the workflow. Any comments are welcome, good or bad. Want to learn as much as possible.
looking pretty good.
thank goodness the signal change fixed it.
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