FSI DM240 Calibration Overview
The FSI DM240 is a 24-inch professional reference monitor from Flanders Scientific designed for critical color evaluation in production and post-production environments. It features a 10-bit LCD panel capable of displaying over 1.073 billion colors, ensuring accurate color representation. The monitor supports full 12-bit video processing and offers a wide color gamut, making it suitable for various color grading applications.
The FSI DM240 display is a popular entry level choice into the professional display market, used by directors, boutique colorists and DITs working with SDR content.
Below is an overview of the display's performance before and
after professional FSI DM240 calibration.
A 3D LUT calibration was done as the FSI DM240 has internal LUT storage.
Equipment, software and target used in the calibration:
- Calibration software: DCM
- Colorimeter: CR-100
- Spectro: CR-300
- Patch generator: DaVinci Resolve, SDI out
- Calibration target: Rec 709 D65 G2.4 100 nits (SDR)
Native Gamut
This is the native gamut (before calibration) of the FSI DM240 compared to the Rec 709 color space calibration target. The display's native gamut fully covers the target color space, making it ideal for color critical application after professional calibration .
White Point
This is a close-up of the native white point (before calibration) compared to the calibration target of D65. It has a magenta/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 blue tint.
EOTF: Gamma
This is the native gamma and luminance response of the FSI DM240. The reference line is configured for the calibration target G2.4. The display in its default native state is too bright, it has an average gamma of 2.25.
Spectrum Analysis
This is the spectrum of the FSI DM240 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.
Notice the spiky spectral response and narrow peaks, a high-end spectrometer is needed to measure this panel accurately.
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 uploaded into the display.
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, much better.
EOTF: Gamma (post)
This is the gamma and luminance response of the FSI DM240 after calibration compared to the reference calibration target G2.4. A big improvement, the display tracks the reference much closer - performance in the shadows will always be a bit compromised on LCD monitors, due to the backlight.
Color Error: delta E 2000 (post)
These are the dE 2000 stats post calibration for a 1,100 point stress test validation profile. With an average dE 2000 color error of only 0.69, the FSI DM240 now performs very 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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