Optoma GT750E WXGA DLP Projector
Projector Central Highly Recommended Award

Highly Recommended Award

Our Highly Recommended designation is earned by products offering extraordinary value or performance in their price class.

  • Performance
  • 4.5
  • Features
  • Ease of Use
  • Value
Price
$1,199 MSRP Discontinued

As one of the few projectors designed specifically for game playing, the Optoma GT750E is both a prime representative of this still new category, and one of the projectors that's helping define it. Despite the focus on video gaming, or more precisely because of it, the GT750E can also fill in as a capable data or low-end home theater projector, which is lot more than you might expect from the $799 price.

What Makes a Projector a Game Projector

Optoma says that the GT750E has been engineered to essentially eliminate the video delay that can make action games painful to play with some projectors, and, indeed, I didn't see any noticeable delay in my tests. Beyond that, it offers a constellation of features that make it particularly appropriate for games.

To help give you an immersive experience, it offers a short throw lens, which lets you sit close enough to the screen for the image to fill your field of vision and still be behind the projector where you don't have to worry about casting shadows. It also offers an audio system that delivers both high volume and good sound quality, a 3000 lumen rating so it can throw a large image that can stand up to ambient light, and a DLP engine with a native 1280x800 resolution, so you can show games at 720p without scaling.

Most important, because games have scenes with photorealistic rendering that approach a video-like image and also have screens that are visually equivalent to business graphics with text that you need to be able to read easily, the GT750E is designed to handle both kinds of images well. This is the key factor that lets the GT750E serve as a data projector or home theater projector if you need it to.

Still another feature that helps make the GT750E particularly appropriate for games is that it's fully 3D ready, able to plug directly into, say, a PlayStation 3 for 3D games. And, finally, if you're the kind of gamer who takes your equipment with you, you'll appreciate both the light weight, at 6.6 pounds, and the padded backpack that the GT750E comes with.

 

Strong Points

Good data image quality. Since some game screens share the same characteristics as data screens, it is important for a game projector to handle data images well. The GT750E does well enough on this score so you can use it as a data projector.

On data screens, colors were a bit dark in terms of a hue saturation brightness color model, but they were fully saturated and suitably eye-catching. Yellow was a touch mustard color, but no more so than with most DLP projectors. Note too that text was crisp and readable down to the smallest sizes we test with. The text was easy to read even in an assortment of color combinations with color text on color backgrounds.

Good video image quality. The GT750E's video quality is easily a match for some low-end home theater projectors and better than you'll get from most data projectors. In my tests, it handled skin tones well and did an acceptable job with shadow detail. I saw a slight loss of detail in scenes that tend to bring out the problem because they're not lit well, but poor lighting (or, rather, it's digital equivalent) is an issue you're not likely to see in games.

I saw some moderately noticeable noise in large areas like the sky or a solid blank wall, but no more than with most inexpensive home theater projectors. I didn't see any motion artifacts or posterization (shading changing suddenly where it should change gradually). More generally, the GT750E's video quality is good enough that I'd be comfortable using it to watch a full-length movie.

Good Game image quality. Good image quality for both data and video almost necessarily translates to good image quality for games, but to confirm it I took a look at both Batman: Arkham Asylum and MLB 10 The Show. The projector handled both the dark Batman scenes and the bright baseball scenes without any problems, and also without the noise I saw with video.

Short throw lens. Thanks to its short throw lens, the GT750E can easily throw a large image in a tight space. For my tests, I measured a roughly 90" diagonal image at 720p at just 57" from the screen. That puts the projector close enough to the screen to let you sit behind it, not have to worry about shadows, and still have an image that fills most of your field of vision.

Fully 3D-ready. The GT750E is one of the few inexpensive projectors with HDMI 1.4a ports, so it can accept a 3D signal directly from a PlayStation 3, a FIOS box, or the equivalent. I tested it with 3D games, Blu-ray discs, and HBO's 3D content on FIOS and it worked as promised, with no problems and with no noticeable crosstalk.

Portable. At 3.8" x 12.8" x 9.2" and 6.6 pounds, the GT750E is small enough to carry easily. If you want to use it occasionally as a data projector for business presentations you may want to get a second carrying case. The included black backpack with red and gray highlights doesn't look businesslike, especially with the words Game Time showing clearly in large letters.

Good quality audio. The GT750E's sound system is far better than what you'll find in most projectors its size. In fact, the two 5-watt speakers offer stereo at high enough volume and high enough quality to match a typical large screen TV, which means you can do without an external sound system if you like.

 

Test Results and Connectivity

Brightness. I measured the GT750E in Bright mode with the lamp also set to Bright at 2805 lumens, or about 94% of its rating. Game mode came out to 1883 lumens, which is still easily bright enough for the 90"-diagonal image I tested with to stand up to moderate ambient light, even considering the dimming effect of 3D glasses. Switching to the Standard lamp mode drops the brightness by about 24%, to 2140 lumens with the Bright preset. For lower ambient light levels, other presets range as low as 1137 lumens with the lamp's Bright mode.

Adequate brightness uniformity. Short throw lenses often have a problem maintaining uniform brightness across the screen, so it isn't surprising that I measured only a 61% brightness uniformity with the GT750E. That's a large enough difference, that I could easily see a cool spot in the upper right corner on a solid white or color screen. However, it's a small enough difference to be hidden in any screen filled with detailed images. I didn't see it in any of the video or game screens I tested with.

Connectivity

The back panel on the GT750E offers a well chosen set of connectors for the focus on games, starting with two HDMI ports for computers or video sources and a VGA port for a computer or component video, with Optoma including a component video adapter with the projector, so you don't have to buy one separately.

Other ports include S-Video and composite video, a set of RCA Phono plugs for stereo audio input, a miniplug for stereo audio output, and an RS-232 connector for controlling the projector from a computer or control box.

One port that deserves special mention is the VESA 3D port. The GT750E supports both DLP-Link and RF 3D glasses with DLP-Link support built in, and RF support depending on a supplied 3D emitter that plugs into the VESA port.

Optoma recommends using RF glasses since they don't need a line-of-sight connection. That means there's no chance of momentarily breaking the line of sight and having to resync. In addition, Optoma's RF glasses are smaller, lighter, and, frankly, less dorky looking than its DLP-Link glasses. On the other hand, Optoma also says its DLP-Link glasses offer better contrast, and my subjective impression is that they give more of a sense of 3D depth. Given that the GT750E supports both options, you might want to try both before committing to buying one kind or the other.

Limitations

No Zoom. The lack of a zoom lens on the GT750E means that the only way to adjust image size is by moving the projector. This could become a minor annoyance for a portable projector you'll likely have to set up repeatedly in different locations.

Rainbow artifacts. Rainbow artifacts are potentially an issue for any single-chip DLP projector. More important, if you see the rainbows easily, you're more likely to find them annoying in a long game playing session or watching a movie than when watching a business presentation. With the GT750E I saw an occasional rainbow with data screens and saw them a little more often with video and games, but still not often enough to find them bothersome.

Unless you're both sensitive to the effect, as I am, and unwilling to accept seeing any rainbows at all, it's unlikely that you'll consider them a problem. To prove the point, I connected the GT750E to a FIOS box and spent a thoroughly enjoyable couple of hours watching movies in 3D, despite the occasional rainbow.

Doesn't include 3D Glasses. The GT750E doesn't come with 3D glasses, which means you'll have spend extra for them, at $70 to $100 each. Optoma says you can find the identical projector selling as the GT750 with one set of RF glasses. At $899, or $100 more than the GT750E, however, you won't save any money that way.

Conclusion

Somewhat ironically, the GT750E's tight focus on game playing makes it a good choice as a jack of all trades. By designing it to handle game images well, Optoma wound up with a projector that offers good image quality for both data and video too. And by adding a sound system that's good enough for games, it wound up with one that's also good enough for movies or business presentations with sound.

Being able to use the GT750E for data and video is a welcome extra, but the best reason to consider it is for its intended purpose, for game playing. The simple truth is that it's well designed for games, with good image quality, good audio, high enough brightness, support for both RF and DLP-Link 3D glasses, and fully 3D-ready. If you plan to play games, the GT750E belongs on your short list.

For more detailed specifications and connections, check out our Optoma GT750E projector page.

Comments (12) Post a Comment
Reuben Posted Nov 13, 2011 1:22 AM PST
It seems like this PJ has it's niche, but it has to be careful because some other 1080p PJs are approaching 1K in street price.

The question is lag, and the question is lumens. This PJ seems to be a "gaming LANFest" type where you put it in your backpack and run. The short-throw helps with setting it up easily in a tight spot.

I just wonder, a 120" 720p vs 1080p image is easily differentiated, but maybe not with mainly 720p games.
Kevin Posted Nov 18, 2011 9:03 AM PST
You guys have this PJ listed as 3D ready but in the review and on the specifics page you have it listed as HDMI 1.4a. What gives?
jello Posted Nov 27, 2011 7:13 PM PST
you guys say "a DLP engine with a native 1280x800 resolution, so you can show games at 720p without scaling."

how can it be "no scaling" by playing 720p content, if the native is 800p?
Dirk Posted Dec 1, 2011 12:27 PM PST
Did you measure output lumens in 3D mode? Was it more comparable to Bright or Game? Thanks.
ricardo Posted Jul 18, 2012 5:44 AM PST
first of all this projector is one the cheapest 3d projectors out right now.amazon is selling it for $678 with free shiping.and i have to say optoma definitely delivered on this one.i had the gt700 for a year and a half and it was a great gaming/movie projector.but the gt750e has some improvements.the image on the bluray movies and xbox 360 gaming looks brighter and sharper.it has 2 hdmi 1.4 for unleashing the latest 1080p image.
Eduardo Posted Aug 5, 2012 4:46 AM PST
I have a Optoma GT700 and do not have more than 80 hours of using, but had start appearing white points at the screen, in the beggining it was only one, now it has eight, I tried everything but they are still there, anybody knows what is happening and what I can do?
Chuck Posted Aug 15, 2012 5:35 PM PST
""WOW"" i bought a GT750E, and WOW its great picture quality great large or small i took this projector outside and shot it on the wall of an industrial building about a 25' screen size and everyone was impressed, added sound and chairs and the crowd grew, sports everyone is at my place back yard a 16' screen BBQ oh yea YOU NEED TO DO THIS!! kids movie night, games, best bang for the buck i have ever had!! ""Short Throw" the best way to go
Stephen Posted Sep 26, 2012 1:28 PM PST
Technically, your right. You cant say there isnt any scaling. The reason people say 720p anyways, is because scalling from the 800 to the 720, is very very very small. Downscaling from Full HD your going from 1920x1080-->1280x800. Now thats a big leap. Upscalling from 800x600 or even a native 1024x768 up to this 1280x800 is also a pretty big leap. But 1280x800 to 1280x720 is next to nothing.The 40 native downscaling on the height is not going to noticeably affect the image quality. But again, thats a whole different story when your upconverting from widescreen 480p (853×480) of regular DVDs to 720p 1280x800 (800) of this projector.
Jon Watkins Posted Oct 1, 2012 6:33 AM PST
The reason that it says there is no scaling for 720p is because it does not fill the screen when running 720p. It puts 40 rows of black pixels on the top and 40 rows of black pixels on the bottom. The a 720p screen fits within the 1280x800 so there is no stretching of the image. When you run the projector in 1080p scales the image within 1280x720.
arvind Posted Oct 29, 2012 2:43 PM PST
does the gt750e play both full and half sbs 3d files...and if it down scales the half sbs 1080p to 720p then it means its ? 640 x 800 (1280 x 800 / 2) for each pic.....just want to know if it plays full sbs mkv files downloaded of the net so that the resolution is not too compromised in 3d...anyone out there tested this?...help would be appreciated..ty
Roberto Rossell Posted Apr 24, 2013 8:23 AM PST
Hello every one, i am really newbie in this, i know the last post was on 2011,but this PJ seems good today and my question is about how important would be have a 1080p projector instead a 720p projector on a 100 inch screen it is noticeable for a untrained eye? the reason of my question is that this PJ is 520$ on amazon and a similar 1080p pj BenQ W1080ST its about 1078$ even Acer H6510BD 3D is 774$ i want to use it for 3d gaming and watch movies equally
Roberto Rossell Posted Apr 24, 2013 9:49 AM PST
Hello again, i have been reading a lot about the difference between RF glasses and DLP but is not clear to me which one is better to use in my case i will use them in my living room son is not a dedicate room i have reading that it is important factor. Which you would use in a room with some ambienta light

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