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Optoma PlayTime PT105 Projector Optoma PlayTime PT105
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Street Price: n/a
Weight: 1.9 lbs
Aspect Ratio:16:9
Lens Shift:No
Lamp Life:20,000 Hrs
20,000 (eco)
Connectors:  Composite, VGA In, HDMI
Video Formats:  480i, 480p, 720p, 1080i, 1080p/60

Optoma PT105 Gaming Projector Review

Marc Davidson, December 15, 2011

Relatively good video image quality. The PT105's video quality puts most pocket projectors to shame, but that doesn't put it in the same class as a typical low-end home theater projector. The quality is best described as good enough to watch a full length movie, as long as you don't mind seeing rainbow artifacts (more on that later).

In our tests, the projector handled skin tones well, and it didn't show artifacts, posterization (shading changing suddenly where it should shade gradually), or any other glaring problems. It lost some shadow detail in poorly lit scenes that tend to cause that problem, but this shouldn't be an issue for games, where the programmed equivalent of lighting is tightly controlled.

I also saw a related issue, with some scenes coming across as a little dark overall, even though the image was bright enough for comfortable viewing. This is most likely related to the color depth of the projector's DLP-based engine, which TI says is 18 bits rather than full 24-bit color. The sense of darkness is what I would expect if the mapping were compressed in the darker shades, with multiple digital shades mapped to the same dark color and some colors mapped to darker shades than they ideally should be. Here again, this is less likely to be an issue for games, which tend to stay away from the dark shades where the compression in color mapping can be a problem.

The PT105 also offers good color balance in both video and standard modes, with suitably neutral grays. Bright mode showed a green tint at some gray levels, but color balance issues in a projector's brightest mode are common.

Good game image quality. Given the focus on game playing, the PT105's image quality for games is probably its most critical feature. As you might guess from the data and video image quality, I found the quality more than good enough to handle game images without serious problems.

Small and Portable. Weighing in at just 1.9 pounds and measuring 3.2" x 7.8" x 7.8" (HWD), the PT105 is small enough to take with you to a friend's house or to store away easily when you're not using it. However, Optoma doesn't supply even a soft cloth cover to protect it from scratches or dust. You may want to buy one both to protect it and to make sure the cables and external power block don't get separated from the projector.

Quick and easy setup. The PT105 is the sort of projector you're likely to be setting up every time you use it, which makes the easy setup an important plus. All you have to do is put it in place, point it at whatever you're using for a screen, plug in the power cord and cable, turn it on, and focus. The entire setup should take less than a minute.

Usable audio. The audio in most small projectors is hardly worth having, but the 1.5 watt speaker in the PT105 is better enough than average to make it worthwhile. It doesn't have the volume to fill a room, but it's loud enough to serve for two or three people huddled around the projector, which is where you'll most likely be if you're playing games.

Previous Page
Introduction and Advantages
Next Page
Testing And Limitations
Review Contents: Introduction and Advantages Strong Points Testing And Limitations Conclusion
Comments (5) Post a Comment
Jacky Chong Posted Dec 25, 2011 12:12 PM PST
I bought one. Found it to be very good, exactly like the review said, down to the T.

The only problem? It died before I even reach the 10 hours mark. Sent it back to the service center, it worked like a charm. Brought it back home, it refused to power up. But once in a while, it will work. I tried different power sources, different connectors, even different locations, and if I get lucky and it is in a good mood, it will work. On most days, it just likes to play dead.

Optoma is one of the leading projector manufacturer in the world, so I have no idea what is happening. Maybe my unit is defective, but how can you convince the service center that your unit is defective when it worked perfectly while at the service center?

I know $199 is not a lot of money for a projector, but it is a lot of money for a paper weight that some times work as a projector.
Jacky Chong Posted Jan 4, 2012 10:25 PM PST

The problem turned out to be a faulty power adapter. I found that out with the help of a friend. Bought a replacement at a local electrical shop. Everything works fine.

Also, Optoma doesn't seem to like responding to customer e-mails. It's like, my problem is not a problem and their defective product does not warrant any attention.

So, guess who will never buy another Optoma projector ever again? I'll also not recommend anyone to buy anything from a company that doesn't care about their customer or their own defective products.
reply to Jacky Chong Posted Jun 12, 2012 4:49 AM PST
You say **Optoma is one of the leading projector manufacturer in the world, so I have no idea what is happening.**

Hmm,but exactly about optomas projector most of complains, most trouble then with other brands like Acer, Lg........
yaz Posted Aug 4, 2013 1:25 AM PST
so if i wanted to hook this up to an xbox 360 how would i get sound out? would i be able to use the hdmi input or would i have to go component and lose some video quality?
Reed Posted Jan 11, 2015 9:08 PM PST
The picture is beautiful for the price (HDMI), but frankly, this model's focus wheel seems to have a slight flaw that makes your image continuously go out of focus. From the comments I've seen across the interwebs, the complaints are similar: no matter how finely you adjust the wheel, your image will become slightly blurry (enough to distract from your experience) after roughly 20-45 minutes. Additionally, some users note that half of your image appears slightly sharper than the other half, no matter your adjustments. Regarding the focus wheel, I know of no trick/hack to correct this problem. I've opened my projector, taken the wheel out/apart, cleaned it, tightened screws, and have even tried to modify the interior of the case with something to either "catch" the lens or make it sticky to prevent slippage. I've even tried the simple solution of putting duct tape over the wheel after setting it. All to no avail! Simply put, if you plan to use it for anything exceeding 30 minutes, expect to get up from your chair and adjust the wheel. Kid-friendly, adult-irritating.

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