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JVC DLA-X55R Projector Calibration and Settings 2

Posted on July 16, 2013 by Art Feierman

JVC DLA-RS45 Post Calibration Grayscale: User 1 "Best" mode

Header Content
20 IRE 6429
30 IRE 6343
40 IRE 6479
50 IRE 6521
60 IRE 6612
70 IRE 6590
80 IRE  6569
90 IRE 6604
100 IRE  6588

Average gamma= 2.22

Best Mode (User 1): Lumens at 100 IRE:    703 @ 6588K 

Brightest Mode (Stage) : Lumens at 100 IRE:   (no "quick-cal" needed):  793 lumens

RGB Settings

Calibration settings for User 1
Gamma Custom
Color Space Standard
Color 0
Color Temp 6500K

JVC DLA-X55R Grayscale Calibration

User 1, Custom Color Temp 1 w/ 6500 starting point
Gain (0)  (NOTE: Gain can only be adjusted) R -9
G 0
B -8
Offset R -4
G 0
B 0
Lumens at 100 IRE 703

Calibration settings for User 1:
Gamma on Custom1 - Normal starting point, Color Profile on Standard   

Mike's notes:  Grayscale calibrated pretty well, with an average Delta E of only 1.1.  Adjusting Gain ond Offset has a greater effect on the total IRE range than it should, so you end up with the lower IREs slightly high in red to keep the rest of the range more accurate.  As Stage (the brightest mode) is only 72 lumens more than User mode, there’s no need for a quick cal of a “bright” mode.  As seems to be normal for JVC projectors, gamma was too low in any of the presets (Normal was the high with an average gamma of 2.10), so I used the custom gamma.  The custom gamma started with the Normal preset, but I dropped the numbers by 15 up to 70%, and then -10 after that. 

The standard color gamut is decent and doesn’t have the oversaturated green that prior models had, but the secondaries are all off a little in hue (see CIE charts*).  Fortunately, the CMS works quite well and I was able to dial in the colors pretty well.  Overall, colors look very good.

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