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Optoma GT750 Projector - Image Quality

Posted on July 14, 2013 by Art Feierman

Optoma GT750 Out of the Box Picture Quality

We didn't calibrate the GT750 at all, other than adjusting brightness, contrast, and in some cases reducing color saturation for a more pleasing image.

As it turns out, the GT750 with its limited color controls, might not calibrate a whole lot better than it performs right out of the box.

That is to say, that the GT750 looked pretty good, just as it comes. Although I found Brilliant Color, and or color saturation, to be set a bit too high for my taste, overall its color is at least as good as most of those little LCDTVs we have stashed in small rooms around the house.

In other words, the GT750 projector is designed for some typical consumers (you?). Optoma is targeting gamers, and also targeting the projector for the whole family. It's probably destined for use in one or more rooms, and probably not mounted.

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Optoma GT750 Projector - Flesh Tones

Our projector did nice skin tones, sometimes exhibiting a bit too much yellow, but never objectionable for a family projector. Some projectors images come out better than others when I do my shoots. I'd say that the GT750 images don't look as good as they could, emphasizing the slight color shift.

Above and below, our usual suspects - Gandalf and Arwen, from Lord of the Rings, on Blu-ray.

Below are our three James Bond images from Casino Royale. Each has a different lighting scenario, the first - full sunlight, the second image; indoor fluorescent, and finally, filtered sunlight in the third image. And as one would expect, that causes each image of James Bond - Daniel Patrick - to have different looking skin tones. All look reasonably good!

To keep the brightness up, the color presets of the GT750, tend to have Brilliant Color cranked a bit. Bright is at the max setting of 10, but even Cinema was set to 6!

Consider these two images (taken with the GT720), varying by the amount of Brilliant Color. The second one has BC at 10. Start with the shades in the hand holding the iPhone (or even the fingertips. Don't look for huge differences, but ones that make a difference:

Note, the difference in the hand. Also, you see a good deal more detail in the boy's hair on the right, with the lower BC, due to more natural looking contrast. Colors are also a touch over the top with BC at 10.

That drop also resulted in a loss of about 1/3 of brightness. Getting down to 0 Brilliant Color costs almost 2/3 of brightness.

For my own viewing of movies I reduced BC to the 2-4 range, and would only use the 10 setting if I needed every last lumen.

Brilliant Color = 10
Brilliant Color = 6

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