The laser produces a published light output of 4,200 ANSI lumens (400 more than the GT1080HDR), which is more than enough for use in a room that isn't fully light controlled. The blue laser passes through a phosphor wheel and a 4-segment RGBY color wheel, then bounces off a single Texas Instruments 0.65-inch 1080p DMD chip. With Optoma's Extreme Black technology (which allows the laser to turn completely off with a full black image), rated contrast ratio is 300,000:1. The GT1090HDR supports HDR10 and HLG high dynamic range, albeit with the Rec.709 color space used for high definition content.
Gamers will appreciate the low input lag on the GT1090HDR, measured with a 1080p/60 signal at 16.4ms with Enhanced Game Mode enabled (input lag is 49.8ms without). This is comparable to most midrange TVs and fast enough that the vast majority of players won't feel any lag effect. The Enhanced Game Mode can be turned on in any picture mode, not just the one labeled game. After release, there was a firmware upgrade (C13) to add 120Hz support at 1080p.
Age Of Ultron 1080p Dual 34l
I used Calman calibration software from Portrait Displays, a Photo Research PR-650 spectroradiometer, a VideoForge Classic pattern generator for 1080p SDR signals, and 4K HDR patterns from Diversified Video Solutions. In Cinema, the Warm color temperature setting added a red tint to the grayscale (more so towards the darker end of the curve), but I found it far preferable to the very blue look of Standard (especially as the curve approached 100% white), not to mention the Cool and Cold setting. Out-of-the-box color accuracy was mostly decent, with blue being a bit oversaturated. But red had a visible orange tint, which also affected skin tones. A calibration fixed almost every issue. After calibration, average grayscale DeltaE was 2.4 and color accuracy was 2.3. The color average would have been lower (green, cyan, magenta, and yellow were all 1.2 or below), but there were still issues with red. It was now undersaturated, but also without the orange tint, which lent a much more natural look to flesh tones. HDR, still a bit of an Achilles heel for all projectors, had undersaturated color in all but blue. The EOTF curve also showed that luminance of grays in the midtones (40-70 percent) was too low, though this is common for many projectors.
1080p/SDR Viewing. I find that the majority of my 1080p SDR viewing nowadays is on HBO, since they still have yet to keep with the times and improve their streaming bandwidth capability and app support to 4K HDR. The Vow has been the recent obsession, a documentary series about the multi-level marketing company NXIVM and its leader, Keith Raniere, who was convicted last year on sex trafficking and conspiracy charges in relation to a secret society within the company and just sentenced to 120 years in prison. The detail across the entire image was fantastic. Sometimes on short throw projectors I've found that the extreme top corners of the screen can be visibly out of focus, but that wasn't a concern with the GT1090HDR. Cracks in leather couches, stubble on the faces of some men, and the wood grain on the outside of a house were all presented with excellent detail. Skin tones were a little muted, but didn't look unnatural.
The elephant in the room is the imminent release of next-gen consoles and their ability to output 4K at 120Hz into displays with an HDMI 2.1 port. Bleeding-edge enthusiasts will be quick to denounce the Optoma due to its HDMI 2.0 port and 1080p limit. The truth is, at launch there will only be a handful of games that will support 4K/120 (remember, in addition to the console and display, the games need to support it as well). For the majority of gamers embracing the PS5 and Xbox Series X, 1080p at 120Hz will be more than enough, and fit far better into their budget.
Input Lag. With a Leo Bodnar 1080p lag tester, I measured 1080p/60 input lag on the Optoma GT1090HDR, with Enhanced Gaming turned on, at 16.4ms. At that speed the vast majority of gamers will be unable to feel any lag from button press to action on screen. The Enhanced Gaming mode can be turned on in any display mode. Outside of Enhanced Gaming, input lag increased to 49.8ms, which is to the point that casual gamers could easily feel the lag and would make playing a game like Mortal Kombat or Overwatch difficult and frustrating. 2ff7e9595c
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