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Our reviewer David Stone noted good picture quality in the one HDR mode it offered at the time of our review . I suspect image quality is already very good with the HD26, and without direct comparison I can't say what differences you'll see (which is affected by the conditions -- dark room? ambient light? screen gain/type?). But on paper the HD27HDR would seem to be a more modern and advanced projector on several fronts that would benefit your gaming. Chris and Nick, I'm inquiring with David about his 3D experience with the projector. As for a contrast comparison with the BenQ 2050a, we really can't comment on it short of a direct comparison.

You give a very positive impression of the contrast. I was wondering how the contrast compared to more expensive units such as the Benq W2000+ or Optoma UHD51A. Like most Optoma projectors, the HD27HDR scores well for rainbow artifacts. I see these artifacts easily, and saw them only rarely with the HD27HDR.
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If you're not viewing 4K material, however, the 4K connection doesn't always provide the best image quality. With a Blu-ray player, for example, playing a 1080p disc—or a DVD—means the player has to upscale the image to 4K, and then the HD27HDR has to downscale it to 1080p to display it. The combination of upscaling and downscaling can degrade the image.

The Optoma derives some benefit from HDR content that the BenQ cannot, but the BenQ reviewed well among 1080p projectors in this price class. I'd be hesitant to make any judgements about black-levels and contrast among these two because of that difference. A careful read of both reviews should give you a better sense of strengths and weaknesses beyond this key point. I purchased the HD27HDR and the image quality is impressive for this price range, but the high-pitched fan noise that whirls up when it turns on then stays constant like tinnitus is really annoying. This projector can recognize and accept a 4K input signal and will downscale it to 1080p to match the resolution of its DLP imager. If that 4K signal is encoded for HDR, it'll recognize that and activate its HDR viewing mode for enhanced contrast.
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And for those who really love 3D, there's also a 2D to 3D conversion setting. Our projectors are capable of reproducing the Rec.709 color gamut, the international HDTV standard to guarantee accurate reproduction of cinematic color exactly as the director intended. Our projectors can also create saturated colors, great for gaming and animated movies.
You can find the spec sheet and instruction manual available at our product database page, accessible from by clicking the product name in the info box at the top of the review. Hello, since i am pretty new to the world of projectors, i would like to ask some questions. My understandings is that the HD29H is the same projector as the HD27HDR, just a different model number for the Euro market. David has added comments to the story to address the 3D performance that were inadvertently dropped from our initial draft. The Optoma HD27HDR actually performed quite well with 3D, and specifically rendered motion very well in 3D mode. You can see his comments just below the paragraph describing "Rainbow Artifacts."
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Mike, on specs alone the HD27HDR has a better contrast rating, and its ability to play 4K content and make use of the HDR10 mastering on UHD discs and games is a strong plus vs. your now aging HD26. It also has MUCH lower input lag for gaming than either the HD26 or the HD27e . As well as the ability to play games at 1080p/120Hz.

I was using the Viewsonic PJD7720HD for 3 weeks now, i was happy, except with the fan noise, on hot days it got really really loud. There is Vertical Keystone adjustment, just not "Automatic" so it must be set manually in the set up menu. There is no horizontal adjustment, so you need to be sure the projector is centered left/right to the screen. I have visited various stores in the area, and, in my opinion, you have to triple the price before you start getting a projector with better performance. This was not an issue in our sample according to our reviewer David Stone, but there was some mention of it on the enthusiast bulletin boards among some users. It has not been a common issue among Optoma projectors.
I picked an HD27HDR to replace an older HD26 that I had been using. The one that I received does not have any issues with color wheel noise, but it also only has a single HDR setting unlike what was said in the comments above. Not sure how to get new firmware update as it is not listed on the Optoma website.
With 1080p material, using both 4K and 1080p connections, they were so fleeting that I barely noticed them. With 4K material, they were still rare, but a little more obvious when they showed. If you're unusually sensitive to rainbow artifacts or don't know if you are, it is best to buy from a dealer who allows easy returns so you can test this for yourself. Changing from the maximum 10 to the 1 setting in Bright mode increased the green bias instead of decreasing it.
After peeling the protective film from the top of my new ceiling mounted HD27HDR, I inadvertently peeled a small round label from the side. Then noticed the fine print "Warranty Void if removed". I saw no instructions about care and removal of protective film, labels. Didn't notice it until the projector warmed up and caused some small bumps in the film. No warning about the small "Warranty Void" label either.
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In some modes it even improves color accuracy, affecting hue and making colors more saturated. For even more accurate color, the HD27HDR's easy-to-use color management system provides settings for hue, saturation, and gain for each primary and secondary color . Eco mode drops the brightness to a touch more than 700 lumens, which is still enough with a 1.3-gain screen for a 135" image in a dark room or an 85" image in moderate ambient light. Unlike most projectors with HDR, the test unit offered only one HDR setting. Optoma's 4K-resolution projectors offer four, which provide a range of brightness levels. Optoma says that a firmware upgrade, which should be available by the time you read this, will add the missing three HDR settings to the HD27HDR.