Viewsonic PJD6531w

Color Temperature (10.00)

Our color temperature test looks at the consistency of the whites: do they stay at the same color temperature as their brightness decreases towards black? The basic answer for this projector is yes: we saw only very minor (and pretty much unnoticeable) changes in color temperature, meaning that this projector produces very consistent whites.

Color Temperature

RGB Curves (6.51)

We were also impressed with the color performance of this projector: we saw a very smooth, accurate response to changes in the intensity of the red, green and blue primary colors, meaning that this projector can accurately reproduce subtle changes in colors on the screen. This makes for smooth gradations of color, such as skies and shadows.

RGB Curves

Red Response Comparisons
Ideal Response
ViewSonic PJD6531w
Epson Home Cinema 705HD
Optoma HD66
Canon LV-8310

Green Response Comparisons
Ideal Response
ViewSonic PJD6531w
Epson Home Cinema 705HD
Optoma HD66
Canon LV-8310

Blue Response Comparisons
Ideal Response
ViewSonic PJD6531w
Epson Home Cinema 705HD
Optoma HD66
Canon LV-8310

Color Gamut (2.54)

The only major issue that we saw on this projector was an inaccurate color gamut, which is the range of colors that a projector can reproduce. A standard high definition TV signal should contain colors within a certain gamut defined in a standard called Rec.709, so a projector should produce the same range. The PJD6531w didn’t quite manage this: reds and greens were a little off, but the blue was very inaccurate, meaning that the blues in images are going to look a lot more violet than the originals.

Color Gamut

Below are the color coordinates of the Rec.709 standard, our measurements, and the difference between the two.

	u' (rec.709/measured)	v' (rec.709/measured)	Error
Red	0.4507 / 0.4388	0.5229 / 0.5252	0.0081
Green	0.125 / 0.1495	0.5625 / 0.5574	0.021
Blue	0.1754 / 0.1385	0.1579 / 0.2479	0.097
D65 (white point)	0.1978 / 0.1771	0.4683 / 0.4795	0.023

Read Reviews of Comparison Products
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