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Optoma PT105 Gaming Projector Review

Review Contents
Ease of Use
Intended Use:
Home Theater
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

Test Results and Connectivity

Brightness. I measured the PT105 in its brightest mode at 79 lumens, or about 5% more than its rating. Standard mode was 44 lumens, and video mode, which I used in most of my tests, was 53 lumens. With the lights out, I found video mode bright enough to settle on a 63" diagonal image for comfortable viewing. With moderate ambient light I dropped the size to 45" diagonal.

Excellent brightness uniformity. One of the more pleasant surprises for the PT105 was its excellent brightness uniformity, with no visible variation in brightness even with a solid white screen. This level of uniformity, which I measured at 90%, is one of the factors that helps make the image look so good compared to pocket projectors.

Connectivity. The PT105 offers three sets of connectors. The back panel includes a VGA port for a computer or component video along with three RCA phono plugs for composite video and stereo audio input. In addition, there's an HDMI port on the right side.

Optoma supplies a combination composite video and stereo audio cable. However, you'll probably want to take advantage of the HDMI port, which means you may want to order a cable when you buy the projector. If you want to connect to the VGA port, you'll need a VGA cable or a component video cable and adaptor as well.


No zoom. With no zoom lens on the PT105, the only way to adjust image size is to move the projector. This shouldn't be a problem given the light weight. However, if you want to hear the low-volume audio, you'll have to move with the projector when you adjust the image size. I measured a 45" diagonal image from 7.3 feet, and a 63" image from 10.2 feet.

No remote. Optoma doesn't provide a remote for the PT105. You have to use the buttons on top of the projector to adjust volume, change the source, or change menu settings.

Rainbow artifacts. xssRainbow artifacts are potentially an issue for any single-chip DLP projector, and particularly for projectors that use LEDs. For the PT105, that translates into showing rainbows relatively often. If you see the rainbows easily, as I do, odds are you'll find them annoying for watching a full length movie. However, they show up far less often in games than in video. You'd have to be even more sensitive to them than I am to consider them a problem for game playing.

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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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