BenQ W7500 Projector Calibration and Settings

Posted on July 7, 2014 by

Mike calibrated the BenQ W7500 projector. Below we repeat a lot of the measurement results reported on the Performance page, but here we add the calibration settings Mike determined in completing his calibration of the W7500. Let's take a look at the numbers:

BenQ W7500 Pre-calibration Settings

BenQ W7500 Pre-calibration - Settings for measurements (default values are in parenthesis):
	Cinema	Dynamic	Standard	User 1	User 2	User 3
Contrast (50)=	49	47	49	49	49	49
Brightness (50)=	51	(50)	51	51	51	51
Color (50)=				48
Tint (50)=
Gamma=	(2.4)	(BenQ)	(2.2)	(2.2)	(2.2)	(2.2)

NOTE: Default Color Temp is Normal for all but Dynamic, which is Lamp Native. Brilliant Color is ON by default for all modes. Cinema mode is in Eco lamp mode by default.

Lamp Mode=Normal (unless noted otherwise)

All other settings at default (untouched)

Lumen Output and Color Temp at 100 IRE (mid zoom):
Cinema	1741 @ 6774, 1431 in Eco lamp mode (default)
Dynamic	2203 @ 8450
Standard	1787 @ 6978
User 1	1787 @ 6805
User 2	1787 @ 6781
User 3	1787 @ 6797

Lumen Output (Eco Lamp, Dynamic): 1787

Color Temp over IRE Range (Various Modes)
	Cinema	User 1, 2 or 3
30 IRE	6906	6976
50 IRE	6752	6910
80 IRE	6697	6890
100 IRE	6784	6819

NOTE: Cinema has the best balance and the User modes are lacking red.

Effect of zoom on lumen output (Dynamic mode):
Zoom out	2340
Mid-zoom	2203
Zoom in	1897

BenQ W7500 Calibration

Calibration settings for User 1:
Gain	R (54) = 55
	G (50) = 50
	B (44) = 43
Offset	R (256) = 255
	G (256) = 256
	B (256) = 253
Lumens at 100 IRE: 1235 @ 6467

Calibration of best mode: User 1 with Cinema setting except Gamma is set on 2.2.

Lumen Output at 100 IRE: 1749 @ 6733

Calibrated Color Temp over IRE Range
20 IRE	6328
30 IRE	6469
40 IRE	6611
50 IRE	6569
60 IRE	6572
70 IRE	6634
80 IRE	6599
90 IRE	6534
100 IRE	6733

Average gamma = 2.15

Mike's General Notes

There was no Quick Cal of Dynamic because even the slightest reduction of green causes the lumen output to drop more than 10% and does not improve the green cast enough to make it worth it. Considering you can get almost 1800 lumens in Standard mode, the extra 200 lumens you get by dropping the green in Dynamic a couple of notches is seldom going to be needed.

Mike's Grayscale Calibration Notes

Grayscale by default in every mode but Dynamic (which uses the Lamp Native color temp instead of Normal like all of the other modes) was quite good. As expected, Cinema mode had the best default grayscale. As you can see from the calibration settings, there was minimal adjustment to both gain and offset needed to get a good RGB balance. Delta E was 1.6 or less from 20-90 IRE, before it jumped to 3.3 at 100 IRE.