- This topic has 10 replies, 4 voices, and was last updated 2 years, 9 months ago by
.
-
Posts
-
Hello everyone, I’m new to all this so I need a bit of help! I am using SpyderPro X and I am trying to calbirate my KTC M27T20 monitor. It is a Mini-LED VA Monitor with FALD (572 Zones). I noticed that after calibration the colors seems to be a tad washed out. Am I missing something? Should I not use sRGB but something else?
The SpyderX likely doesn’t have the right correction for mini-LED displays.
Please create a verification report.
SpyderX Pro on Amazon
Disclosure: As an Amazon Associate I earn from qualifying purchases.Hope I did it right.
a) You calibrated (1st screenshot) with wideg gamut LED mode, but validated with none ( SpyderX — Generic)… hence measurements are wrong
As said by Kuba, SPyderX buiolt in measurement modes are too generic and we do not know the SPD of your display.b) You are validating color managed. Run without simulation profile. Choosing sRGB as simulation profile does not behave the way (I believe) you think.
Yes.
Gamma and grey color are off, white too. This points that user may have modified OSD settings (profile does not match display + VCGT grey calibration, for example “Measured vs. display profile whitepoint ΔE*00”) … or maybe that profile was not created with the proper settings .. or maybe some FALD is messing with display behavior (*).
Even with an innacurate device like an Spyder, when aimimg to some numeric coordinates the result must match, grey should be neutral and a 3D mesh profile shoul be abe to describe its behavior.
(*) set a dark background. Then check if a notepad windows makes display change its overall brightness as you vary notepad window size. This an issue on OLEDs when ypu pass some nits but on a miniled should not happen.
Try to disable dynamic contrast if you cannot fix this.Here some reports with different options I tried, everything while I made sure all FALD and auto contrast options are off:
Calibrated profile with RGB adjusted with GAMMA at 2.2 and one with GAMMA off.
Calibrated profile with RGB in normal mode of the OSD.
OS profile with RGB stil adjusted from calibrated profile.
OS profile with RGB in normal mode of the OSD.Does this help somewhat?
Does this help somewhat?
It means that messing with OSD changes whitepoint & overall display behavior
that display & profile match , hence that OSD settings combination were the ones used in profile creation.
Other OSD settings will need their own custom ICC profiles + white point correction + gamma correction.
Sorry for the long pause some things just got in the way! Buuuut got a Mini-LED IPS to compare the 2 monitor and see which one I would keep.
I tried calbirating the both with different modes of the SpyderX. Found out that the reports (as far as a noob can read them) seems pretty good with Generic and White LED mode. Still noticed that the VA one had washed out color compared to the IPS Panel or is it that the IPS is oversaturated? Or maybe just natural difference between VA and IPS?
I’m including the reports and some photos for comparison.
If they are widegamut… they are not “white led”, nor “generic”.
If they are widegamut… they are going to look oversaturated vs an sRGB display if you use it non color managed (like windows desktop, games)
If one has bigger gamut it will look more saturated non color managed… but they should look close color managed like showing an sRGB image in Photoshop (excluding contrast of course)If they are well behaved, do not use XYZLUT profiles but single curve matrix + BPC, because “validation OK” (assuming you chose proper colorimeter correction, which you did not) only means that profile and display matches.
If you plan to game or use it non color managed you’ll need novideo_sRGB or AMD srgb simulation and those apps do not use 3d mesh info (like XYZLUT), only primaries (“matrix”-like profile info from custom profile or EDID).Try to read some basic about color management because it seems that you are making wrong comparisons or using a widegamut display in a way it is not meant to.
What monitor you keep and like, ktc or acer agon?
I also just buy KTC m27t20 monitor, update it to the latest firmware. In hdr picture is good.
In sdr mode image is looking strange, there is sharp transition between higlights and shadows, because of that picture is looking very contrasty. Its like banding but not, dont know what is that, cant correct it in osd(
