Mitsubishi HC7900DW Projector Calibration and Settings

Posted on July 16, 2013 by Art Feierman

Mitsubishi HC7900DW Color Temperature

Color Temp over IRE Range, Best Mode
	A/V Memory 1 (or Cinema)
30 IRE	6505
50 IRE	6582
80 IRE	6570
100 IRE	6550

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
Contrast	0	0	0	0	0
Brightness	2	2	2	2	2
Color	0	0	0	0	0
Tint	0	0	0	0	0
Color Temp	(Medium)	(Medium)	(Medium)	(Medium)	(Medium)
Gamma	(Cinema)	(2.1 Video)	(3D)	(3D)	(Cinema)

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).