Best Home Theater Projectors
Ease of Use
Intended Use:
DIY Home Theater
ViewSonic PJD7820HD Projector ViewSonic PJD7820HD
(add to Compare List)
Go to My Compare List

Street Price: n/a
3D: Full HD 3D
Weight: 4.6 lbs
Aspect Ratio:16:9
Color Wheel:6 segments
Lens:1.3x manual
Lens Shift:No
Lamp Life:4,000 Hrs
6,000 (eco)
Lamp Cost:$329.00
Warranty:3 year
Connectors:  S-Video, Composite, VGA In (x2), HDMI, USB, RS232
Video Formats:  480i, 480p, 720p, 1080i, 1080p/60, 576i, 576p

Viewsonic PJD7820HD
Home Video Projector Review

Allan Abbott, August 5, 2013


Brightness and Uniformity - The PJD7820HD exceeded its brightness specification in Brightest Mode with Brilliant Color on by delivering 3,330 ANSI lumens. The other Presets provided the following readings: PC and Dynamic PC - 2,520 lumens, ViewMatch - 2,265 lumens, Movie and Dynamic Movie - 1,700 lumens, and Gaming - 2,365 lumens. Brightness uniformity was 67% with the brightest part of the image in the lower center.

Color Brightness - Like many non-home theater DLP-based projectors, the PJD7820HD loses about 50% of its brightness when switched to its most color-balanced mode (Brilliant Color off). But if color balance is not critical or the room's ambient light demands higher image brightness, then turning Brilliant Color on may be a good choice.

Input lag - Gamers will be happy to hear that the PJD7820HD's various image modes all measured 17ms, or one frame, of delay with a native-resolution signal source. For those requiring fast reaction times, the PJD7820HD provides a responsive platform.

Image Size and Offset - Projecting a 100" diagonal image requires a projection distance of between 8'5" and 10'11" from the screen. The centerline of the lens is 6" below the bottom of the image at those distances, so tabletop mounting works well.

Menu Selection and Navigation - There are six menus for the PJD7820HD, but they are easy to navigate. Most of the settings you are likely to need are found in the Display and Picture menus, and the dual User modes allow you to store two sets of preferred settings. This makes for a quick set-up for two different viewing situations (for example, daytime and nighttime) without the hassle of changing settings manually.

Remote Control - The PJD7820HD's full size remote control is sectioned into four distinct functional areas: source selection, menu navigation, specific function keys, and page/mouse controls when the USB-B cable is connected to a computer. With source selection enabled, one key will sequence through the connected sources, but there are also dedicated keys for direct selection of VGA and video inputs.

Review Contents: The Viewing Experience Key Features Performance Limitations and Conclusion

You support ProjectorCentral when you buy the
ViewSonic PJD7820HD from these authorized resellers.
Thank you!

Reader Comments(6 comments)

Posted Mar 4, 2015 1:33 PM

By ananth

Post a Comment Alert Moderator
hi team

I am the current user of ViewSonic XGA DLP Projector...looking for upgrade into FullHD+3D ....still confused with this one and Optoma HD141X Full 3D 1080p .....dont which one is better in Picture quality wise.....

Posted Apr 2, 2014 6:42 AM


Post a Comment Alert Moderator
This only applies to 24hz 3D Viewing... Like Movies or LOW Frame rate PC Gaming... 24Hz

The Benq W1080ST/W1070 Have the X3 "Triple Flash" THIS gives them the total Refresh rate of 144Hz. - This only Applies to Games/Movies that are in 24Hz Resolution/Format -

24Hz X 3 Times (Triple Flash) = 72Hz/Per Eye = 144Hz Total Refresh Rate. - The Acer H6510BD is as follows - 24Hz X 2 Times (Normal double Flash) = 48Hz/Per Eye = 96Hz Total Refresh Rate.

This is how I figured it out. Seems that 144Hz only matters for 24hz 3D-Blueray Movies.

Posted Sep 30, 2013 9:09 AM

By Jose

Post a Comment Alert Moderator
I have an HD23 and I'm looking foward to buying a 3D projector. I have noticed some Rainbown effect with the HD23 and althrough I have already get used to it I would like to get a projector that would give me less rainbown effect than the HD23. I use the HD23 on my living room and today I can use it to play videogames during the day, with closed windows. I have two projectors in mind: The PJD7820HD and HD131Xe (or Even the HD25). Which of these projectors creates less rainbow effect? Thanks

Posted Sep 6, 2013 1:45 PM

By gary

Post a Comment Alert Moderator
Can this projector PJD7820HD hang from the ceiling upside down and ready for ceiling mount? Have reversing capability.

Posted Aug 24, 2013 6:13 PM

By Gray

Post a Comment Alert Moderator
Is the 3D refresh rate 144Hz or 96Hz? Trying to decide between this and the Acer H6510BD

Posted Aug 19, 2013 11:39 AM

By spspspspsp

Post a Comment Alert Moderator
What about the lumens in 3d mode? You nice folks at ProjectorCentral measure it for other projectors. I would love your technical comparison against the Optoma HD25/LV.

Post a comment

Commenting on this article is easy and does not require any registration. Your email address is necessary for you to activate your comment once it has been submitted. It will not be shown to other site viewers. ProjectorCentral reserves the right to remove any comment at any time for any reason. Foul language is not permitted, nor are personal attacks. No HTML allowed. All comments should remain on topic.


Email Address:(used only to confirm your comment)

Your Comment:

(Enter the numbers as they appear to the left)