Mitsubishi LT-52149 LCD HDTV HT Labs Measures
Full-On/Full-Off Contrast Ratio: 2,597:1
All of the measurements were taken in the Natural mode, adjusted as needed for the most accurate picture.
The above readings were taken with the backlight control set on 19. The measured black level could be reduced with a lower backlight setting, but this sacrificed picture brightness for no significant visible improvement in black level.
While the black level shown here is above average when stacked up against other LCD flat panels we’ve tested, the Mitsubishi’s subjective blacks and contrast were little better than those of comparable sets.
In its factory low color-temperature setting, the Mitsubishi’s pre- calibration color tracking was poor, with too much green across most of the brightness range and too much red at the bottom. The set’s service menu calibration adjustments provide only a single control for each of the three primary colors. The best result I obtained is shown in the After Calibration chart.
The color gamut in Natural mode (shown in the CIE chart) is excellent. (The markers designated with a “+” are the color points for the HD standard; the clear color markers are the Mitsubishi’s measured results.) The color gamuts in both Brilliant and Bright (not shown) had heavily oversaturated greens.
The set’s white-field uniformity was little better than fair. However, this was also hard to spot on real program material.
The Mitsubishi’s measured HDMI resolution was excellent, with response on burst patterns clearly visible to the maximum requirements of each HD and SD resolution. Although component HD resolution was merely average, component SD resolution easily met the requirements of 480i and 480p sources. The set also produced a clean 1:1 source-to-screen 1080i and 1080p pixel map (in the Full Native aspect ratio setting). These results did not translate to particularly impressive subjective resolution of fine details on normal program material, though. This might be due to the gray shading artifacts.
The set’s overscan did not exceed 0.5 percent on any side in 1080i (component and HDMI) or 1080p (HDMI). It averaged just slightly below 3 percent on each side in 720p, 480i, and 480p—a loss of a bit under 1 percent (1080i/p) and just under 12 percent (all other resolutions) in overall picture area.—TJN