FSI BM211 Calibration Overview
The FSI BM211 is a 21.5-inch professional broadcast monitor from Flanders Scientific designed for production, editorial, and broadcast environments. It features a Full HD (1920x1080) resolution with an 8-bit panel capable of displaying over 16.7 million colors. The monitor utilizes 12-bit video processing to enhance color accuracy and image quality.
The FSI BM211 display is an entry level choice into the professional display market, used by directors, DITs, and boutique colorists and editors working with SDR content.
Below is an overview of the display's performance before and
after professional FSI BM211 calibration.
A 3D LUT calibration was done as the FSI BM211 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 G2.4 125 nits (SDR)
Native Gamut
This is the native gamut (before calibration) of the FSI BM211 compared to the Rec 709 color space calibration target. The display's native gamut covers the target color space efficiently, making it suitable for precise display calibration.
White Point
This is a close-up of the native white point (before calibration) compared to the calibration target of D65. It's a bit off target with a blue tint.
RGB Balance
This is the Greyscale RGB balance before 3D LUT calibration, the blue tint in the mid and high range is apparent.
EOTF: Gamma
This is the native gamma and luminance response of the FSI BM211. The reference line is configured for the calibration target G2.4. The display in its default native state is a bit brighter than target.
Spectrum Analysis
This is the spectrum of the FSI BM211 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 improved. Shadows are a bit compromised, due to the LCD backlight - this si expected.
EOTF: Gamma (post)
This is the gamma and luminance response of the FSI BM211 after calibration compared to the reference calibration target G2.4. A noticeable 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 0.64, the FSI BM211 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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