Hitachi HDPJ52

Color temperature (before/after calibration)
Low window (30 IRE): 7,268/6,598 K
High window (80 IRE): 7,367/6,485 K
Brightness (100-IRE window before/after calibration): 8.2/11.1

Before calibration the Hitachi HDPJ52's grayscale varied by an average of 786K from the standard, which was sixth-best of the group. Afterward it varied by a fifth-best 140K. Its real-world contrast ratio of 98.94:1 was second-worst. Primary-color accuracy was fairly good, although green was second-worst in the group, and color decoding was very accurate for both SD and HD sources. The HDPJ52 could not fully resolve 720p sources via any input, while other resolutions were generally good compared to others in the group. A "screen door" pixel grid was visible from 7 feet as well as faintly from a normal seating distance of 12 feet. Edge enhancement was visible via 720p HDMI, and eliminating it resulted in too soft an image, but 720p component-video didn't exhibit any enhancement. Uniformity was the worst of the group, with subtle discoloration visible in white and gray fields at various light levels; black levels did not fluctuate depending on program content. Overscan measured 1% along the top of the screen and 0% elsewhere. Focus was problematic, with softness visible on the right side of the screen, and minor fringing was visible from 7 feet on convergence patterns. Standard-def video processing was good, although some jagged edges were evident, and 2:3 pulldown detection was nearly instantaneous.

See the review of the Hitachi HDPJ52

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