FSI LM-2461W Calibration Overview
The FSI LM-2461W is a 24-inch professional broadcast monitor from Flanders Scientific designed for color-critical applications in post-production, broadcast, and on-set environments. It features a 1920x1200 resolution IPS panel with 10-bit processing for accurate color reproduction. The monitor features 10-bit video processing, ensuring accurate color representation and smooth gradients for professional broadcast and post-production workflows.
The FSI LM-2461W display was a popular entry level choice in the professional display market, used by colorists working with SDR content.
Below is an overview of the display's performance before and
after professional FSI LM-2461W calibration.
A 3D LUT calibration was done as the FSI LM-2461W has internal LUT storage.
At time of calibration, the unit was 10 years old with an estimated 20,000 hours of usage.
This calibration is another great example how professional FSI LM-2461W calibration can restore old, out-of-spec displays, making them usable again in color-critical workflows.
Equipment, software and target used in the calibration:
- Calibration software: DCM
- Colorimeter: K-10-A
- 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 LM-2461W compared to the Rec 709 color space calibration target. The display's native gamut fully covers the target color space, making it ideal 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 shows a significant deviation and a pronounced red tint.
RGB Balance
This is the Greyscale RGB balance before 3D LUT calibration, strong red tint.
EOTF: Gamma
This is the native gamma and luminance response of the FSI LM-2461W. The reference line is configured for the calibration target G2.4. The display in its default native state is a bit too bright.
Spectrum Analysis
This is the spectrum of the FSI LM-2461W 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, huge improvement. Shadows are a bit compromised, due to the LCD backlight.
EOTF: Gamma (post)
This is the gamma and luminance response of the FSI LM-2461W after calibration compared to the reference calibration target G2.4. A noticeable improvement, the display tracks the reference closer than before - 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 0.97, the FSI LM-2461W 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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