Sony PVM-2541A Calibration Overview
The PVM-A2541A is a 25-inch RGB OLED production monitor from Sony, designed for professional applications in broadcast and post-production environments. It features a Full HD (1920 x 1080) resolution and offers exceptional color accuracy, contrast, and viewing angles making it ideal for color grading, monitoring, and critical visual tasks in high-end video production.
The Sony PVM-A2541A is a popular choice in the professional display market, used by colorists, directors, and DITs working with SDR content.
Below is an overview of the display's performance before and after professional Sony PVM-A2541A calibration.
A 3D LUT calibration was done targeting a Sony Judd alternative white point (AWP), as these RGB OLED panels trigger metamerism in observers. The resulting cLUT was then loaded into the BMD Micro Converter LUT box, the PVM-A2541A does not have internal LUT storage.
Equipment, software and target used in the calibration:
- Calibration software: DCM
- Colorimeter: Admesy PCM2X-270
- Spectro: CR-300
- Patch generator: Murideo 6G 8K Metal
- Calibration target: Rec 709 AWP G2.4 max nits (SDR)
- LUT holder: BMD Micro Converter 33^3
Native Gamut
This is the native gamut (before calibration) of the Sony PVM-A2541A, compared to the internal Rec 709 color space calibration target. Here, the display was configured to use the R709 preset, which in the current state is close to the target color space, as the owner will be using the display (potentially) with and without the BMD Micro Converter LUT box. This approach allows for precise display calibration in either case.
White Point
This is a close-up of the native white point (before calibration) compared to the AWP calibration target. It shows deviation from target and a blue tint. The display has bias/gain CMS controls to manually adjust lower/upper Greyscale, if desired.
RGB Balance
This is the Greyscale RGB balance before calibration, it has a strong blue tint.
EOTF: Gamma
This is the native gamma and luminance response of the Sony PVM-A2541A. The reference line is configured for the calibration target of G2.4. In its default native state, the display's brightness is much higher than the calibration target.
Spectrum Analysis
This is the spectrum of the Sony PVM-A2541A 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 loaded into the BMD Micro Converter LUT box.
Gamut & White Point (post)
Gamut (post calibration) compared to the Rec 709 D65 target - both color space and alternative white point are on target.
RGB Balance (post)
This is the Greyscale RGB balance post-calibration, excellent result.
EOTF: Gamma (post)
This is the gamma and luminance response of the Sony PVM-A2541A after calibration compared to the reference calibration target G2.4. A significant improvement, the display now tracks the reference much more closely than before.
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 0.42, the Sony PVM-A2541A 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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