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ViewSonic > 
Item#: N82E16824116636

ViewSonic PJD7820HD 1920x1080 FHD 3000 ANSI Lumens, Up to 120Hz Refresh Rate, HDMI / Dual VGA Inputs, Auto Keystone Correction, 3 Year Warranty, 3D Ready DLP Projector

  • 1920 x 1080
  • 3000 ANSI lumens
  • 15,000:1
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Learn more about the ViewSonic PJD7820HD


Cabinet Color


3000 ANSI lumens
Native Resolution
1920 x 1080
Contrast Ratio


1.2x Optical Zoom
Throw Ratio
1.25 - 1.5:1
Keystone Correction
Digital keystone correction +/- 40 degrees

Lamps & Accessories

Lamp Life
4000/6000 (Normal/Eco)


Input Video Compatibility
Analog RGB, Digital, S-Video, Composite
Input Video Connectors
D-Sub, HDMI, Composite, S-Video
Output Video Connectors


Built-in Speakers
3D Blu-ray ready, vertical keystone correction, 1.2x optical zoom lens, remote control

Dynamic ECO Technology for capture audience's focus by reducing brightness by 70%

Physical Spec

10.5" x 3.3" x 8.7"
4.6 lbs.

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the ViewSonic PJD7820HD

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  • Hope P.
  • 4/10/2014 8:30:34 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAwesome Stuff

Pros: I bought two of these with the $50 instant rebate. Which rocked. I have installed them in classrooms and love them. They have good color and a large amount of adjustment which is great when you have a 72" smartboard screen to mate it up to. So far I really like it. The students could see the screen with lights one and blinds open.

Cons: none

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  • Mary M.
  • 3/18/2014 8:12:09 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAffordable HD and 3D!

Pros: A great machine. Very low energy and it comes with a great warranty. Finally 3D that I can afford. You can find 3D glasses around $20.

Cons: The only thing I don't like is that you cant change brightness settings when it's in 3D mode. You have to set this up before you go to 3D

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  • Walter B.
  • 1/9/2014 9:13:45 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsGood. And Cheap. (But cheap.)

Pros: A bright 1080p projector at a great price point.

Cons: They cut every corner they could to get there, and a few they didn't have to.

Other Thoughts: Other reviews here and elsewhere go into the technical details, but here are my overall impressions.

I wanted a bright 1080p projector at a reasonable price. This one fills the bill.

That said, it not only is cheap but looks and feels cheap, and lacks some important details that will make it less convenient to use, especially for those who take advantage of its portable size and weight.

The case feels plasticy and cheap. The distractingly shiny and reflective finish on the top doesn't help. (The sides and bottom are matte, just to rub it in.)

No lens cap! How could they? Fortunately the plastic cap off my wife's small can of gold glitter spray paint snaps into place as if it were made for it, and the glitter adds a touch of retro chic.

The front elevation wheel is a wide pitch plastic helix. I miss the metal screw with a quick release tab on my old Sharp projector, compared to which this is clumsy and slow. And there's no second adjustable foot to level the projector, so you'll be sticking folded paper under a corner.

The manual comes only on DVD, an inconvenience for road warriors.

I'm bothered that the fan turns off almost as soon as the power button is pressed. I'd be happier if it cooled the lamp down first, but maybe the engineers know what they're doing.

It's a good, cheap projector, and that's what you get.

2 out of 2 people found this review helpful. Did you? Yes No

  • Brandon B.
  • 1/5/2014 6:18:21 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsBest Purchase & I am a gamer

Pros: Great picture and super fast response time. I can't tell the difference on this compared to my flat screen TV's with 5ms response. I play high speed competition gaming and I have no cons to having a 100"+ screen while playing. I am using the wall and it's PLENTY bright without a screen of any sort and this wall is by no means even close to white (it's a darker red). Very surprised by the power.

Cons: Of course a little fan noise (not overbearing) 1 HDMI input is a downer of course. If you use Keystone feature you will see a dim light where the picture is supposed to be so plan on making it level with the center of the screen for optimal view. I have mine behind the couch at about center with the view screen and it's great.

Other Thoughts: The thing is short throw so it makes a large image from a short distance. You will only have about 5 feet of wiggle room to fit this on your screen if you have one with the zoom feature. Plan carefully or you should not be buying a projector in the first place. Great for the money and I have not tried the 3d feature yet so I am not commenting on it. 4 stars for high performance, small price tag, and exactly what I wanted after my expectations were shattered while being addicted to this huge and awesome picture!!!

1 out of 1 people found this review helpful. Did you? Yes No

  • Ben N.
  • 12/12/2013 1:05:29 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsLove it

Pros: I love it so far. Its 1080p, and while not as good as the w1080st, its close. Its not listed as short throw, but it is. For every foot you move it back from the wall, you get one foot of diagonal image. FYI Theres another one by Acer as well (h6510bd) which is pretty much the same projector.

I actually bought the BenQ w770st first and returned it. As I'm sitting about 8 feet from the screen, the 1080p matters a lot to me. If you are considering a 720p projector, sooner or later you'll wish you would have bought a 1080p projector. This is how I felt a day after I bought the w770st haha.

Cons: Rainbow effect.

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  • Josh W.
  • 12/4/2013 2:54:48 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat but confusing

Pros: Bright and clear picture

Cons: for the life of me i cant figure out how to get this to work with nvidea 3d vision and i cant get a definite answer as to if it will even work with nvidea 3d vision. I have all the stuff i need to used nvidea 3d vision but i cant get it to work on this thing. any advice or help and im open to hear it

Other Thoughts: great product otherwise.

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  • Jody R.
  • 11/17/2013 10:52:40 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsExtremely happy with the purchase

Pros: First impressions over my last DLP projector:
- The white is white and bright, the black is black.
- Quickly turns on/off.
- Keystones just as well, able to get square picture with projector 2.5 feet from ceiling and image at the ceiling.

This projector is perfect for my space.

Cons: None so far.

Other Thoughts: My projector died so I spent a couple days hunting for a replacement. My setup is through an acrylic window about 11.5 feet to the opposite wall. I had what I think was a standard throw projector 1.5-1.7:1 and it didn't quite fill up the wall so I searched for short throw projectors. Those were around 1.0:1 and would not zoom down enough for my room. Then I found the ViewSonic with a 1.3:1 throw and it is a perfect fit. The entire wall is filled with light. 11 feet diagonal at maximum zoom. Text and image look great.
I use this primarily with an XBox 360 for gaming and movies. The projector seems more responsive that the one it replaced. I can't discern a delay between controller and image at all. HD Streaming movies are crisp. I watched a DVD last night and noticed the lower quality of the media.

1 out of 3 people found this review helpful. Did you? Yes No

  • Xuan J.
  • 9/12/2013 3:08:16 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month

1 out of 5 eggsHope Viewsonic will fix this stupid bug

Pros: brightness/Cheap

Cons: sharpness badly in 1080P 3D 24Hz mode. I just find it work bad in 1080P 3D 24Hz framepaking mode. One Native 1080P projector should output a 1:1 pixel to pixel view when my laptop output a 1920x1080 resolution. This projectoer works well in 2D mode. But in 3D mode, once I output 3D by PowerDVD, I find the top/left/right side have overscan about 5% in 3D mode. I worked in TV manufactor for 8 years, I have never seen a display device overscan in their native resulution without option to choose. 100% to 105% overscan has make a clear picture from 3D blueray disc turn to urgly view. I have tried Intel laptop and AMD APU based laptop for both RGB and YCbCr mode. All the mode I tried have this problem in 1080P 3D 24Hz. I am not sure all the firmware version have this problem, but I can not read my firmware version by normal menu. I hope Viewsonic can fix this problem by firmware update. But viewsonic do not feedback to me so far. I believe if I know this problem before I buy it, I won't buy this projector any more.

2 out of 10 people found this review helpful. Did you? Yes No

  • John V.
  • 7/28/2013 6:12:45 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest purchase I've made in years

Pros: 1080p; 3D capability; very bright picture, even in a fairly bright room.

Cons: none so far

Other Thoughts: We had a 50" plasma TV in our media room and it just wasn't giving us the home theater experience we wanted. I researched projectors and settled on this model due to the price, the 1080p picture and the 3D capability.

I built a 140" diagonal screen using the instructions on and bulk screen material bought online.

This was my first experience with a projector, and I was blown away. The picture is clear and bright. The best part of all is the 3D. I had read that most home theater projectors are not very bright in 3D mode, but I can say that this one is not lacking in that area. I watched the 3D Avatar blu-ray and even the dark scenes were plenty bright for me. The 3D is just amazing; I would say 95% as good as the theater.

The truth is, I had the projector for a couple of months before I tried the 3D mode, as I didn't have a 3D capable player, glasses or even a 3D disc at first. In my opinion it would be worth the price even without 3D. Throw in the 3D, and this starts to seem like a bargain.

2 out of 3 people found this review helpful. Did you? Yes No

  • 6/16/2013 12:56:30 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsFollowup Review: Still as awesome as ever, if not better

Pros: So after owning the projector for a couple of months I've learned more about it. Here are some corrections made to my prior review:

First off, I discovered that it's possible to get 1080p 3D @60Hz.... kind of. Turns out that I wasn't using the proper settings in my 3D driver. I found an option in it for Top-Bottom 3D rendering, which halves the vertical resolution while keeping the horizontal the same. So you get 1920x540 per-eye. This isn't as bad as it sounds, since the human eye isn't as sensitive to vertical resolution loss so long as horizontal resolution is high.

Doing some tests in various games, I've noticed that objects still become hard to discern at the same distance as 1920x1080 2D, and the only time that I can tell the difference between this and true 1080p is with horizontal objects 1 pixel tall, which rarely show up in games anyway. So while not perfect, it's a WAY better option than muddy 720p. Therefore, disregard everything I said about 3D and having to play with the resolution settings, set your 3D driver & projector to Top-Bottom, games to 1920x1080, and forget about it.

On the issue of DynamicEco, the manual states that it's only purpose is to save lamp life when away from the projector for short amounts of time. This function is there simply because turning off the projector then back on before it has a chance to fully cooldown over the course of an hour shortens the lamp's life. I was confusing DynamicEco with a separate Economic function in the settings.

Lastly, I take back what I said about the contrast. You can in fact discern every level of black down to zero if you turn BrilliantColor OFF. Doing this results in more accurate colors as well as opening up more advanced color management settings which let you adjust individual Hue, Saturation, and Gain values for all six colors on the wheel. I'd give you my settings for this but I've decided it would be inconsequential since they're eyeballed settings anyway. I will say, though, that a gamma setting of 3 is now preferred to 7, and Dynamic PC is now preferred to Dynamic Movie for more accurate colors eyeballed using test patterns. The only time you would want to turn BrilliantColor On is if you needed extra brightness (which you won't, even during the day, and even with the lamp set to Economic).

Cons: It's hard to find any more co
ns not stated in my previous review, but since I have to put something here let me just say that the firmware is a little bit buggy at times. An update will hopefully fix these minor issues assuming ViewSonic issues one.

Other Thoughts: All in all, I've put over 225 hours of gaming and movie watching into this thing, and I'm still as happy as I was from day one, if not more so. I still say you can't do any better for the price.

8 out of 9 people found this review helpful. Did you? Yes No

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Item#: N82E16824116636
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