Projector Reviews

BenQ HT4050 Projector – Advanced Calibration

Welcome to the Advanced Calibration Page of the HT4050 Projector.  This page is for subscribers only.

This page provides the post calibration settings for each of the primary and secondary colors using the color management system (CMS).

In addition it provides CIE charts for Pre and Post Calibration. Other charts include grayscale and gamma.

About this Calibration Information

Mike completed the CMS calibration of the individual colors, which are provided below. And, of course, some additional comments from him.

BenQ HT4050 CMS

Color Management Settings (Default is in parentheses)
Red Green Blue Cyan Magenta Yellow
Hue (234) 230 (221) 156 (220) 220 (236) 235 (205) 152 (224) 226
Gain (200) 187 (200) 195 (200) 188 (200) 200 (200) 200 (200) 200
Saturation (196) 196 (195) 187 (198) 197 (188) 164 (183) 185 (186) 186

Numbers shown in  ( ) represent the factory default settings, those without ( ) are the actual results.

Mike's CMS Calibration Notes

If you’re going to name a mode, Rec. 709, the color gamut should be very close to that standard by default, and with the HT4050 it was (see CIE chart).  Green and yellow, often the most inaccurate colors with many DLP projectors, were both very good by default, with yellow requiring almost no adjustment.  The CMS worked well, bringing the Delta E error down from an already excellent 1.4 average down to a miniscule 0.4.  Chromaticity errors, which ranged from -9.6% to -3.0% (but mostly within a -0.3 to 4.0 range) were also reduced to a range of -0.4% to 1.0%.  Excellent results consistent with the best projectors out there.

Calibration Charts (Before and After)

Click to enlarge these charts, pre- and post-calibration.

This Slideshow image player is manual.  Use the arrow keys to select the image you want to enlarge, and then click on the image.

BenQ HT4050 Pre- and Post-Calibration Charts