JVC DLA-RS6710 Projector Review - Hardware 3

Posted on April 22, 2015 by Art Feierman

DLA-RS6710 PROJECTOR HARDWARE TOUR - PAGE 3: Lens Throw, Lens Shift, 3D

JVC Projectors - Zoom Lens - Throw Distances

JVC Projector Lens Throw (all 2014 models) for 100" diag. screen
Lens Position
Wide Angle (closest to screen)	9 feet 10 inches (3.01 mtr)
Telephoto (furthest)	20 feet 1 inch (6.13 mtr)

As I noted in a previous JVC projector review, JVC publishes a zoom range with a 2:1 ratio. As you can see from the numbers above, though it's slightly more than 2:1 (more like 2.03:1.) That will buy you an extra 4 or five inches over the entire range with a typical screen size. This is almost as good as it gets. The competing projectors with more range: 2.1:1 (Epsons), and 2.06:1 on some Sonys.

The long end of this JVC projector's range should allow placement far enough back that it will allow most people to rear shelf mount their projector if desired.

To figure out the correct distances for larger or smaller screens, just multiply the numbers in the chart above by the difference in size. As an example, a 12o inch diagonal screen is 1.20 times the size of a 100, so multiplying the 9' 10 inches (closest distance for the 100") by 1.2 would give the closest distance for the larger screen. Easy enough?

JVC RS6710, RS67U, X900R: Lens Shift Range

JVC Projector Vertical Lens Shift Range (from Center of lens) 100" diagonal 16:9 screen w/ no horizontal shift used
Above Top of Screen	15 inches
Below Bottom of Screen	15 inches

Basically for a 100" screen, the projector could be ceiling mounted so that the center of the JVC's lens is 15 inches above the very top of the screen surface, or if table placed, as much as 15 inches below the bottom of the screen surface.

Or, anywhere in between!

Horizontal lens shift is +/- 34% (vertical is +/80%), which works out to .34*87" (width) or about 29 inches. Thus, if no vertical lens shift is in use, the center of the lens could be anywhere from 29 inches to the left, or to the right of dead center.

The manual provides a basic chart that shows how quickly vertical lens shift range diminishes as you start using horizontal, and vs. versa.

Bottom line: the JVC RS6710, or more generally all current JVC projectors have a lot of lens shift range, a few projectors like the Epson's have more vertical, but overall, the lens shift range is excellent, providing most people with an easy mounting solution.

JVC 3D Capabilities

The JVC DLA-RS6710 comes with two pair 3D glasses, and the 3D emitter. The glasses and emitter are optional on the other versions which are $500 less. You definitely need the emitter if you wish to watch 3D.

I wasn't really thrilled with the 3D quality due to some artifacts in the previous generation of JVCs, and would say that basically all of JVC's competition was doing a better job.

Although I only had the RS6710U here for just over a week, I did manage to get in a few hours of 3D viewing, including Guardians of the Galaxy and much of the last Harry Potter movie, and something a little more normal - (barely) - Men In Black III, which is far less CGI oriented.

Crosstalk could be better. I do believe it is still more evident than on the competing Epson LS10000 and the Sony 4K projectors. It's been over two years since I reviewed the previous generation, so I my memory is hard pressed to determine if JVC improved it at all. I suspect it is better, but it's still not great.

Again though, it's tough to demand 3D quality rivaling 2D. As much as I do like 3D, I've learned that in that area some compromise is still needed, starting first with brightness. As I said early on in the review. This may well be the best 1080p 2D projector in terms of picture quality. 3D was left out of my description for a reason.

At best, very watchable for most of us. Those offended by crosstalk will be more offended than usual.

The 3D Emitter plugs right into the back. Optional. $99

JVC's glasses are RF. The Emitter is a small device that plugs directly into the back of the projector into its DIN connector. Very simple, and doesn't stick out very far.

There are now lots of 3rd party glasses available. Current JVC's should also be interchangeable with Sony and Epson 3D glasses, but more to the point, there are low cost alternatives such as those from Samsung (about $20 a pair), that are lightweight and comfortable. The battery powered Samsungs are very light (aka comfortable). I used them, as well as the JVC glasses at different times in my viewing.

3D should be much fun with the JVC DLA-RS6710. Kids will love it, other family members that like 3D (my wife is not a fan - mostly because of the glasses), who aren't as critical as you or I, will be just fine. Hey, I can live with the JVCs minor issues, of greater concern is it sure can use more 3D brightness, being a little less bright than the competition (well, not much so compared to the Sony VW350ES).

Works for me! But still room for improvement.