Asus PA32UCDM SDR Calibration Overview
The Asus PA32UCDM is a 31.5-inch UHD (3840x2160) SDR/HDR monitor from Asus designed for color grading as well as photo and video editing and digital workflows. It features a 10-bit Quantum Dot OLED (QD-OLED) panel, capable of displaying over 1.073 billion colors.
The Asus PA32UCDM is a very popular choice among professional displays, offering Grade A color accuracy for SDR. Ideal for color suites that require high-quality reference performance for SDR content but do not need any of the features that more expensive monitors offer.
Below is an overview of the display's performance before and
after professional Asus PA32UCDM SDR calibration.
A 3D LUT calibration was done and the resulting cLUT was then activated in DaVinci Resolve as a monitoring LUT (taking advantage of tetrahedral interpolation).
As of 2025, the display is reference grade in SDR after calibration.
Equipment, software and target used in the calibration:
- Calibration software: DCM
- Colorimeter: CR-100
- Spectro: CR-300
- Patch generator: DaVinci Resolve, HDMI out
- Calibration target: Rec 709 D65 G2.4 120 nits (SDR)
Native Gamut
This is the native gamut (before calibration) of the Asus PA32UCDM compared to the Rec 709 color space calibration target. The display's native gamut fully covers the target color space, making it ideal for accurate display calibration.
White Point
This is a close-up of the native white point (before calibration) compared to the calibration target of D65, the display white point is on target. The display bias/gain CMS controls were used to calibrate the Greyscale and white point as good as possible before the LUT calibration.
RGB Balance
This is the Greyscale RGB balance before calibration, the pre-calibration helped a lot but it still has a blue push in the lower range.
EOTF: Gamma
This is the native gamma and luminance response of the Asus PA32UCDM. The reference line is configured for the calibration target G2.4. In its default native state, the display is much too bright below 40% stimulus.
Spectrum Analysis
This is the spectrum of the Asus PA32UCDM in native gamut for full white, with the red, green and blue primaries spectral output overlaid to identify color channel issues. The R, G, B color channels match the white response closely, this is ideal.
Calibration
After display preparation and configuration, a large display profile is run to create a detailed characterization of the display. From that profile data, a 3D LUT is then generated by DCT and used in Resolve as a monitoring LUT, with tetrahedral interpolation enabled.
Gamut & White Point (post)
Gamut (post calibration) compared to the Rec 709 D65 target - both color space and white point are on target.
RGB Balance (post)
This is the Greyscale RGB balance post-calibration, excellent.
EOTF: Gamma (post)
This is the gamma and luminance response of the Asus PA32UCDM after calibration compared to the reference calibration target G2.4. The display now tracks the reference very closely.
Color Error: delta E 2000 (post)
These are the dE 2000 stats post calibration for a 1,000 point stress test validation profile. With an average dE 2000 color error of only 0.33, the Asus PA32UCDM now performs exceptionally well given that the JND (just noticeable difference) for human vision is set at a dE 2000 value of 2.3.
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