SmallHD 703 Calibration Overview
The SmallHD 703 is a 7-inch LCD production monitor with an IPS panel from SmallHD designed for professional video production. It features a 1920x1080 LCD display with 2,200 nits of brightness, making it suitable for outdoor use.
The SmallHD 703 display is a popular on-camera monitor used by DOPs, ACs and directors.
Below is an overview of the display's performance before and
after professional SmallHD 703 calibration.
A 3D LUT calibration was done as the SmallHD 703 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 2200 nits
Native Gamut
This is the native gamut (before calibration) of the SmallHD 703 compared to the Rec 709 color space calibration target. The display does not fully cover Rec 709 - the R, G, B primary points will be corrected as good as possible.
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 shows significant deviation from target and a yellow tint.
RGB Balance
This is the Greyscale RGB balance before 3D LUT calibration, it has a strong yellow tint.
EOTF: Gamma
This is the native gamma and luminance response of the SmallHD 703. The reference line is configured for the calibration target G2.4. The display in its default native state is excessively bright.
Spectrum Analysis
This is the spectrum of the SmallHD 703 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 well, this is good.
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 - white point is on target, red and blue primaries are slightly inside the Rec 709 color space, the green primary is a bit more inside the Rec 709 colors space.
RGB Balance (post)
This is the Greyscale RGB balance post-calibration, a huge improvement.
EOTF: Gamma (post)
This is the gamma and luminance response of the SmallHD 703 after calibration compared to the reference calibration target G2.4. A significant improvement, the display now tracks the reference very closely - performance in the shadows will always be 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 0.96, the SmallHD 703 now performs very well given that the JND (just noticeable
difference) for human vision is set at a dE 2000 value of 2.3.
All 112 points with a dE 2000 > 2 are either in the shadows (the higher color error is caused by the LCD backlight) or in the green or blue region.
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