![]() ![]() On all of these 4K projectors under $2000, the HDR picture is an incrementally higher contrast image than you get with non-HDR sources. So one must be careful not to confuse maximum achievable black levels with overall image contrast. And it can deliver contrast and three dimensionality that often exceeds the UHD50. On the other hand, in scenes with average illumination levels and continuous gradations of luminance from black to white, the PX727 tends to render black elements as solid black. This is mostly noticeable in a side by side comparison when images with black backgrounds such as rolling credits or the FBI warning screen are being displayed. It is almost as if there is some frame interpolation going on, but there is not.īlack levels are adequate, incrementally better than the BenQ HT2550, but they do not reach the depth of black that one sees on the Optoma UHD50. ![]() It also has a smooth, natural film-like quality that the competing units cannot always match. The picture is remarkably stable with noticeably reduced judder in motion/panning sequences compared to competing units, particularly with 1080p sources. But since the vast majority of 4K material lacks this level of noise, most users will prefer the extra sharpness of detail rendered by the Super Resolution detail processing when activated on low settings. The only downside to a low Super Resolution setting is that it will accentuate digital noise in scenes where there is already a lot of noise in the source (for example, the interrogation scene at the beginning of Blade Runner). The Super Resolution feature typically defaults to a low setting and lends beautiful incremental detail definition. In addition to impressive color quality, the PX727-4K hits on all cylinders in terms of image sharpness edge to edge, image clarity and stability, minimal noise, and excellent contrast that produces good image depth (three-dimensionality). The PX727-4K has a 1.2x zoom lens that loses a paltry 3% at the telephoto end compared to the wide angle end, so there is no reason to worry about which end of the zoom you're using. It does not reduce the luminance of the 100 IRE screen used to take ANSI lumen measurements. This option extends lamp life to 15,000 hours. The PX727-4K also has an energy-efficient dynamic black mode which is referred to as SuperEco in the marketing literature but appears as Dynamic in the menu. There is an Eco lamp mode which reduces the Movie and Standard mode brightness by 34% and Bright mode by 37%. In Movie mode, color brightness measured 106% of white and gives you the most balanced picture the PX727-4K is capable of. In Standard mode, the brighter of the two, color brightness measures 81% of white. Meanwhile, Movie is essentially neutral-the "go to" mode for ideal movie/video display. Standard shows a much more subtle cyan bias than does Bright. The PX727-4K also has presets called Standard and Movie that are not as bright but better color balanced than Bright, along with two custom adjustable User modes. In the end, you still wouldn't want to use the PX727-4K's Bright mode in situations where color accuracy is of primary importance, but for a football party in ambient light you can get away with displaying the big game in Bright mode without it looking too excessively green. This of course is your brain playing tricks on you, but it demonstrates how infinitely flexible the brain is in interpreting relative color differences. In fact, if you put the PX727-4K up side-by-side against the three competing models noted above, put them all into their "Bright" modes and display a 100 IRE white test image, the others all look obviously green while the PX727 looks neutral white in comparison-the perception of cyan disappears completely. However, the PX727-4K is cyan in bias and not as heavily tinted as the competition. As is typical, this projector has a very bright factory calibration, called "Bright." The brightest modes on most projectors tend to be skewed toward an obvious green. The Viewsonic PX727 is rated at 2200 lumens. We don't know the precise technical differences between this wheel and the RGBRGB wheels in other projectors, but the end result is that color definition on the screen is outstanding.Īt the current price of $1299 the ViewSonic PX727-4K competes most directly with the Optoma UHD50, the Vivitek HK2288, and the BenQ HT2550, all of which are currently priced at $1499.īrightness. But with the PX727-4K they have taken color optimization a step further with the internal development of a proprietary RGBRGB color wheel with Rec. The result is often very nicely balanced color right out of the box that requires little calibration. ViewSonic has invested a lot of development effort into color optimization in its home theater projectors over the last several years. ![]()
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