Sony VPL-VW1000ES 4K SXRD Projector How Close Should I Sit?

So Near and Yet So Far: How Close Should I Sit?

According to the promotional material Sony provided with the projector, the company recommends a viewing distance of between 1.5 and 3.5 picture heights for 4K material (3.0 to 3.5 is frequently recommended for 1080p HDTV). But what about 2K sources upconverted to 4K? Since the latter is likely to be the best material available to the consumer for use on a 4K projector for the foreseeable future, this isn’t a trivial question.

Using picture height as a yardstick is actually a confusing way to determine seating distance. It doesn’t take into consideration screens—and images—of varying aspect ratios. A more accurate way to look at the issue is the viewing angle—the angle the image subtends in your field of vision from left to right. The viewing angle is more usefully related to picture width than picture height.

Here’s a helpful Website on viewing distance: myhometheater.homestead.com/viewingdistancecalculator.html.

If you know the size of your screen and the seating distance, the calculator on this site will give you the viewing angle. For the 118-inch-wide 16:9 screen I used in this review, a viewing distance of 1.5 x PH (picture height) is 99.45 inches or about 8.3 feet. That’s 0.84 x PW (picture width), or a viewing angle of 61.3 degrees. This seating distance may be technically useful for native 4K material—or to prove that when you’re that close, you can see the pixel structure with ordinary HDTV but not with 4K—but it’s likely to be a bit over the top for most viewers.

What viewing angle should you aim for? SMPTE (the Society of Motion Picture and Television Engineers) recommends 30 degrees—which happens to be virtually the same as the maximum distance you should sit if you want to see all of the detail in a 1080p image. On the other hand, THX recommends 40 degrees. (That’s what the THX site will give you. THX recommendation on the viewing-distance calculator site is slightly less. The 40-degree recommendation may reflect THX’s more recent thinking.)

A 30-degree viewing angle is about 3.33 x PH. 40 degrees is 2.27 x PH (in both cases for a 16:9 screen). While both of these figures are further away than 1.5 x PH, both of them are within Sony’s 1.5x to 3.5x recommended range for 4K. For the 118-inch-wide screen I used here, I found a viewing distance of 13 to 14 feet most comfortable for both conventional HDTV sources upconverted to 4K and for the limited selection of native 4K material available to us. 13.5 feet results in a 40-degree viewing angle for this screen.

For standard-definition sources, I preferred to move back to about 16 feet. If you can’t move the seating distance, another approach to minimizing the visibility of artifacts from SD material would be to use the VPL-VW1000ES’ lens memory to reduce the picture size for SD sources, perhaps together with a four-sided masking screen (though these tend to be very expensive). Alternately, you could use a second, smaller screen.

For a constant-height setup, such as with an anamorphic lens, the viewing angle will be smaller for anything apart from a 2.35:1 image filling the entire screen. That’s probably acceptable for most 16:9 (or even 4:3) movies, which tend to be comedies and similar material in which the immersion of a wider viewing angle is less important. If you sit 11.4 feet from a 100-inch-wide 2.35:1 screen, for a viewing angle of 40 degrees, the image width at the same distance is reduced to 76 inches and the viewing angle to 30 degrees when you project a 16:9 constant-height image on the same screen. Not optimum, perhaps (particularly with the occasional 16:9 epic such as Jurassic Park or Avatar) but workable.

To determine the viewing distance for either the THX or SMPTE viewing angle, a simple calculation will make the exercise less tedious. I’ve done most of the math so you don’t have to. For the THX 40-degree result, divide the screen width in inches by 8.76 for the seating distance in feet. For the SMPTE 30-degree solution, divide the screen width in inches by 6.42 for the seating distance in feet.

COMPANY INFO
Sony
(877) 865-SONY
ARTICLE CONTENTS
Share | |
COMMENTS
turls's picture

Both me and my dealer are confused by this. I need to get this straight because of throw distance restrictions I have. Can you explain this a little more from the middle of page 2 of the article? What does using an anamorphic memory setting have to do with changing the minimum throw distance?

"Sony specifies the throw distance for the VPL-VW1000ES as 1.27 to 2.73; this is said to be reduced to 1.68 to 2.73 if you use the lensless anamorphic memory setting."

Rob Sabin's picture
Sony sent us a note to clarify and explain this. The company's Rob McDonough responds:

Picture Position Lens memory uses stored lens settings to quickly switch aspects and image sizes, such as between 16:9 and 2.35:1 sources. When calculating Throw Distances, if zoom is going to be used to make these image size changes, there must be sufficient zoom range left to work with. 16:9 images and throw distances must be able to zoom larger for 2.35:1, and 2.35:1 images and throw distances must be able to zoom smaller for 16:9. Thus, there needs to be an extra throw distance limit imposed to keep sufficient zoom range held in reserve.

For 16:9 screen data, the limit must reduce the TD range at the short end, and for 2.35:1 screen data, the limit must reduce the TD range at the long end of the zoom. The attached chart assumes use of a 2.35:1 screen, and therefore calculates sufficient reserve at the long end of the zoom.

The 1.68 limit quoted refers to 16:9 data when zooming larger to achieve 2.35:1, so it applies the limit at the short end. In practice, it usually makes more sense to calculate based on actual screen dimensions, usually the wider aspect, or larger image.

jlee949's picture

This is a LONG way down the road for the consumer market but I predict that 3D sound will be the next big thing in the industry.

Scott Wilkinson's picture

You might be right; see Tom Norton's blog about a new 3D sound system here:

http://www.hometheater.com/content/beyond-71

rianlynch's picture

Personally, I expect 4k to be realized far sooner than most people currently suggest, even with the sluggish/bearish economy's dilatory effect on home media upgrades. TV's (recent at least) traditionally used 3 ~light cells (RGB) for each pixel (1920x1080 pixels); however, recent development of color filters allow for the transition to one of those light cells, effectively tripling the resolution available via tv technology already mass-produced. That means very little needs be engineered/accomplished to see 4k screens marketed at today's prices. Recording devices increasingly trend towards a more reasonable 4k price point, and the second projector is now available at 25k, down from 125k....I'm betting 3 years on the topside.

devidhoogs's picture

Nowadays technology is running as faster then wind. As a result electronic companies can invent some wonderful creation for us. In this post I've come to know about the Sony VPL-VW1000ES 4K SXRD Projector Settings. It is really a well invention. Thanks!!!

tv installation

flash11's picture

Please continue this great work and I look forward to more of your awesome blog posts.
debt consolidation loan

annajohnson7474's picture

If you are seeking truth I will tell you the truth… This is one of the best blogs in Internet and may be the top player in the tech related field. The blog is always up to date and they never miss anything of utmost importance. search here

cbetz's picture

3D sound integrated into all home theaters, I believe is on the way. We shall see when it arrives at the right price point. Just like with anything else technology related, there will be a tipping point @ a specific price. Just look at Home Automation costs in 2013, they are definitely becoming much more competitive..Home Automation is soon to be a baseline for homes over 300k.

X
Enter your Sound & Vision username.
Enter the password that accompanies your username.
Loading
setting var node_statistics_98362