Color performance after a full software calibration
Let’s try to use software to improve what ASUS did not want to or did not give the monitor at the factory. Color accuracy!
OSD Setting D65 @ 200 Nits (OSD Standard Profile)
Unfortunately, you can only improve the RGB balance slightly with these settings.
Important: These settings do not work for the sRGB mode, which has been blocked by ASUS, so you can’t even adjust the brightness. Pathetic!
Unfortunately, the extreme deviations in relation to gamma sRGB (2.2) can only be corrected by means of software calibration. The OSD offers no possibility to adjust the gamma settings. With a DeltaE 2.9, there is no need to look at the ColorChecker. The gamma deviations are in the gray range between 30 and 90, which leads to high DeltaE values – especially when color comes into play.
In other words:
- Default Gray Scale dE 3.3 = ColorChecker dE 3.99
- CCT corrected Gray Scale dE 2.9 = ColorChecker dE 3.6
This will not improve without gamma correction!
Full calibration with Portrait Displays Calman Ultimate (100 % APL)
This is (roughly) how I would like to see the sRGB mode on every monitor. Unfortunately, even in 2024, this is the exception rather than the rule. Even at absurdly low prices, manufacturers rarely make an effort to implement factory calibration.
Brightness
After calibration, the MX25AQ still achieves the manufacturer’s specification of 300 nits. The minimum brightness is also impressive – nice play on words…
Spectral distribution and “Eye-Safe
The spectral light distribution of the IPS panel is not as nicely differentiated as today’s QD OLEDs. This is one of the reasons why the MX25AQ is only at home in the sRGB color space. The blue light component peaks at 449 nm and is the most pronounced. If you have a problem with blue light, you can reduce the intensity in the OSD via the “blue light filter”. (See article on the ASUS ROG Swift PG32UCDM).
Spectral distribution @ D65, 200 Nits (100 % White Window)
Uniformity
The image uniformity of the MX25AQ is, well… The IPS weaknesses such as bleeding and glowing are quite obvious here. Although this is not overly noticeable in normal desktop use, it is noticeable when working with Excel, for example.
Image errors and other issues
The speakers are still working after seven years, even if the sound takes some getting used to. I couldn’t find any other defects or problems such as flickering etc. I also only tested with the RTX 4090, which recognizes the monitor as G-Sync compatible in the dual setup – unfortunately not in the single setup. Why is that? I’ll have to get in touch with NVIDIA, or do any of you know? I didn’t do any tests with AMD because this isn’t a classic monitor article. That wasn’t the intention today. Then it’s time for today’s conclusion. Last page…
16 Antworten
Kommentar
Lade neue Kommentare
Veteran
Urgestein
Mitglied
Moderator
Veteran
Mitglied
Urgestein
Veteran
Mitglied
Veteran
Mitglied
Moderator
Veteran
Mitglied
Mitglied
Mitglied
Alle Kommentare lesen unter igor´sLAB Community →