SIM2 Grand Cinema HT300 DLP Projector HT Labs Measures

HT Labs Measures: SIM2 Grand Cinema HT300 DLP Projector

The top chart shows the gray scale of the HT300 relative to its color temperature at various levels of intensity, or brightness (20 IRE is dark gray; 95 IRE is bright white). The gray scale as set by the factory, in the warm color setting, is minus red and plus green and was too far off to measure as a color temperature. After making adjustments using the Photo Research PR-650, the gray scale measures within 250 Kelvin of D6500, the accurate setting, across most of the range. The temperature drifts blue with brighter images. The bottom chart shows the gray scale (or color temperature) relative to the color points of the display's red, green, and blue color-filter wheel. The color points don't quite match those specified by SMPTE, which means the display will not display all of the colors available in the system. Green is noticeably yellow. The gray scale is slightly bluish-green before calibration and is more accurate over most of the range afterward (see the red dots in the middle). The light output was approximately 13.2 foot-lamberts on a 6.5-foot-wide Studiotek 130 screen at 100 IRE. The 1,280-by-720 chip displays the full resolution available on the Avia test DVD.—GM

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