Mitsubishi HC7900DW Home Theater Projector Review
Mitsubishi HC7900DW Color Temperature
|Color Temp over IRE Range, Best Mode|
|A/V Memory 1 (or Cinema)|
Before we provide our settings, lets see what we started out with: Pre calibration, these are the color temperatures over the grayscale range.
|Lumen Output and Color Temp for various Picture modes at 100 IRE|
|Cinema||486 @ 6897|
|Video||486 @ 6662|
|3D||804 @ 7556|
|Game||804 @ 7564|
|A/V Memory 1, 2, 3||476 @ 6602|
|ISF Day||761 @ 7458|
|ISF Night||444 @ 6628|
Mike’s Notes: While it shouldn’t, the Contrast setting can nonetheless have a huge impact on lumen output. If you use the normal Contrast test pattern to set contrast, you end up with it set at 10 for each Picture mode. This results in an 11% increase in lumens. So, for example, the lumen output in Game mode goes from 962 to 1069 and a maximum of 1235 lumens with the High Bright color temp.
Mitsubishi HC7900DW Basic Settings
|HC7900DW Basic Settings|
|Cinema||Video||3D||Game||AV Mem 1,2,3|
In addition to calibrating Red Green and Blue for a correct grayscale balance (6500K), there are a number of other settings that come into play. Typically Contrast and Brightness (white balance and black balance), need to be done first. Color saturation and gamma also need adjustment.
All other settings at default (untouched). Iris setting has no effect on lumen output.
Mike’s Notes: Grayscale Calibration
The HC7900 is pretty similar to the HC7800 previously reviewed. It’s marginally brighter than the 7800 and like that projector, turning Brilliant Color on increases lumen output, to the detriment of grayscale. Grayscale was very good after calibration, with Delta E under 1.0 from 20 to 90 IRE. There is a big bump at 100 IRE as the lamp runs out of Red, but the average Delta E is still 1.0 (under 3.0 is considered good).
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