EluneVision screens - Page 32

Thanks for the detailed response Milosh. I have some decisions to make on size and aspect ratio, but I'll be looking towards a Tab Tensioned reference screen when I pull the trigger.

I recently purchased a motorized Luna 120" 4:3 screen for my church. When we set it up and tried to lower the screen nothing happened. We removed the plastic accessory that had to be removed before usage, but still nothing happened? Anyone have any ideas why?

I've seen many people with pull down screens having problems with the annoying V pattern developed after several years of usage. It occurs on cheap and expensive screens too. Is this due to the way the screens are rolled up in the bar for prolonged time?
Is there any screen that 100% (yes, you read that correct: 100%) eliminate this issue?

Any long time users are welcome to comment on their experience.

Hi

I have emailed you regarding the issue. Please check your email.

Dave Hao
EluneVision

Hi

To eliminate V, the best way is to get a tab tensioned screen which has tensioning system that gives the screen tension horizontally and vertically. That is the only 100% way that I know Vs will never appear. Even the best designed screen with heavy fiberglass materials will sag over time, it is just gravity and humidity cycles at work over the years.

Dave Hao
EluneVision

The problem is that many tab-tensioned screens face the same problem too. To give an example, there are just too many stories heard from the Elite CineTension2 screen.
I'm worried that if The EluneVision screen will have the same fate. Can the screen be perfect for at least 20 years?

If you take a look at Elite's so called "Tab-Tensioned" screens, the actual curvature of the tabbed sections on the two sides is extremely low, that it is essentially more like a motorized screen with decoration on the sides. Nobody can guarantee 2 decades of worry-free service, but EluneVision Tab-Tensioned screens are much higher-quality than Elite, will last much longer, and give you a much better picture on day 1 as well. Again, just look at the width of Elite's motorized vs their tab-tensioned screens - the difference in width is fairly small, that it can hardly be called a tab-tensioned screen. Our tab-tensioned screen's housing is longer on the same viewable size for that reason - because our tab-tensions material on the left and right sides are curved enough to make a difference long-term. Our screens have a heavier weight bar, and our material has better elasticity than Elite's materials. Our roller tube is thicker diameter. With all of the mentioned features, the Titan screens have better stats than any of Elite's screens, and our Reference screens have even better performance metrics than that.

Thanks,

Milosh
Edited by miloshj - 7/24/12 at 2:37pm

I'm particularly curious about the EluneVision Elara Vivid Pro-Cinema Grey 1.8 Gain screen. First question: does this screen have a noticeable texture (visible in highlights)? I had a 1.8 gain gray Optoma GrayWolf screen for 6 years... I didn't like its texture, nor the waves that developed in it over time (manual pulldown).

The Problem: I can't control light bounced off my screens to ceilings/walls reflected back onto the screen. The top of my 120" screen is only a few inches away from the white ceiling.

Observations: I recently bought a 120" 1.1 gain fixed frame Elite screen, only to realize that my contrast dropped 3-fold from my 1.8 gain Optoma GrayWolf screen (grey base). Primarily b/c light is being scattered to my walls/ceilings & raising my black levels so they're literally gray. I get contrast ratios of ~60:1 w/ a Epson 8350 (for intra-scene contrast, assayed via a black-to-white wedge on screen). Same Epson 8350 gives me ~200:1 on the old GrayWolf.

I figure the GrayWolf that I've had for 6 years performed so well b/c:

(1) 92" is smaller than 120", so a much smaller source of light for walls/ceilings
(2) Microbeads reflect light, more so than 1.1 gain diffuse surfaces that scatter light. Hence the microbeads on my GrayWolf helped to channel more light back towards the projector, less to my ceilings/walls.
(3) Gray base helps blacks probably more than it hurts brights, but that's just a hypothesis of mine that I haven't really tested.

The Solution?

Based on this I was thinking of a high gain gray screen. I'm figuring high gain retroreflective is good since most light is reflected back to source, so I'm assuming less light is scattered to surrounding walls/ceilings? And gray just b/c it reflects less of any ambient light that does make it back to the screen. Is my thinking correct?

If so, is the Vivid Pro-Cinema Gray a good choice? I don't like the texture of the GrayWolf, so would like to avoid anything that adds too much texture.

My other option I was thinking about is a DaLite High Contrast High Power screen (2.4 gain with gray base).

FYI:

1. My projector is on a rear shelf, so I can move it around such that it's very close to my viewing position.
2. 15' throw
3. Don't care about off-axis viewing, since I'm sitting very close to this 120" screen (most of us watching are within a narrow viewing cone)

Any input would be much appreciated!

For anyone curious, I called EluneVision & they told me the Vivid Pro-Cinema Grey (1.8 gain) is the same surface as the Optoma GrayWolf II. If the GrayWolf II is at all like the original GrayWolf, that means I wouldn't be happy w/ the texture...

Does Elunevision motorized screen available in 220-240V power supply version?

Yes, it is available as a custom order.

Thanks,

Milosh

Are these screens only sold in Canada?

No, you can purchase it no matter where you're from. Contact through the eastporters.com website for more information.

Thanks,

Milosh

I just ordered this one. Ultra High Performance/Longevity
EluneVision Reference Studio 100 Fixed-Frame Screen - 1.0 Gain White, Very excited. Was very happy with the service and advice from EastPorters

I've heard conflicting reports of the black levels from the BenQ W7000. Some saying the blacks are washed out and not great to Art's review at Projector Reviews saying it has fantastic blacks and qualifies for an ultra contrast projector.

With that all being said, what screen would you recommend for the W7000....a Grey screen or the reference white?

Thanks

I would definitely recommend a white screen. The contrast on that projector (while not up to par with something like a JVC D-ILA projector which has extremely good blacks) is still very high in relative terms, and you are better off getting the benefits of the colour representation of a white screen than to try to increase your blacks a little bit with a gray screen.

Thanks,

Milosh

Thanks Milosh, I will be heading to Hamilton on Monday with my buddy, who's the one looking for a screen, hope to see you there.

waithing for my new reference studio audio weave 115 inch if it will be a good match to my new sony vpl-hw50es and Dave (eastporters) you are the best

I asked this question about one year ago and am now in the market. I am looking at your 106" or 112" tab-tensioned motorized reference studio audioweave screen. I will be pairing this screen with the Sony VW95 projector. I would prefer to have this screen housing tucked into the ceiling for that clean look. With that said, are you offering a ceiling trim kit with this screen or know of a brand of trim kit that would be compatible with your housing? Thanks for your help.

I boxed mine in with plywood. Not as clean as you want, but better than suspending below a ceiling.

Do you a picture to share? I would love to see how yours turned out. Thanks.

I am interested in purchasing a “Reference Studio 4K” screen distributed by EluneVision (Eastporters). I assume that EluneVision and Eastporters are one and the same as they have the same address on their respective websites.

While researching this product on the internet, I have discovered that EluneVision is also sold by Best Buy Canada, Visions Electronics Canada and various other sites. However, I am confused as the product sold under the Eastporters’ site is called “Reference Studio 4K”; whereas, under the Best Buy and Visions Electronics sites, the term “4K” is not mentioned. Interestingly, the SKU number for all three sites is the same (EV-F3-92-1.0).

So are the products sold under the Best Buy’s site and the Visions Electronics’ site the same “Reference Studio 4K” products sold under the Eastporters’ site?

Peter

Milosh, (or anybody that may have an answer) I am wondering if the 1.0 gain of the Reference Studio 4K would be suitable enough for an BenQ W7000 in 3D mode, factoring in a light controlled room with a 125" to 135" screen size?

I understand it is a bright projector, especially in 2D, but the reviewer at Projector Reviews http://www.projectorreviews.com/benq/w7000/index.php makes the following comments:
"Strange as it may seem, the W7000 projector can actually be too bright for smaller screens (at least in 2D)." "You probably will want to have a 110" screen or larger, but you can go smaller by choosing a high contrast gray surface, with, perhaps, .8 gain. You will have to balance that decision with 3D brightness of course." "Modest gain (ie. 1.3 or 1.4) is just fine and buys you a bit more screen size or image brightness."

I like the details of the Reference Studio 4K, I'm just concerned that it may not be enough gain (for 3D), and I don't want a dual screen set-up.
Admittedly, the bulk of my viewing will be in 2D mode.

Thanks.
Edited by Grypham - 12/11/12 at 5:30pm

Hello,

You have no reason to worry for either 2D or 3D with a 125" or a 135" screen. In a light-controlled room (or even with some ambient light) the W7000 is very bright, and will look great on the Reference Studio 4K screen. Screens higher gain than that will suffer from hot-spotting, not to mention the typical non-Reference problems with texturing that is clearly visible in any panning/moving scenes, etc.

I would most definitely get a 1.0 gain screen, and not entertain anything higher with your setup. We have the W7000 in the demo room, and it is indeed a light-cannon, so nothing for you to worry about when it comes to brightness.

Thanks,

Milosh

That is demonstrably untrue. Check out Da-Lite's High Power or High Contrast High Power screens. Gain of 2.4 with no hot-spotting.

That's actually not a correct statement - a correct statement would be that the Da-Lite High Power material has little hot-spotting if you perfectly position the projector and leave little seating placement flexibility (and in fact, we have the PureBright 4K material which achieves better performance as the Da-Lite High-Power in all metrics). In order for the brightness back to the eye to be of a higher gain, the photons which would have otherwise been scattered perfectly in every direction are biased toward the eye - this means that less photons are available to go in other directions. Other than that, I agree, with our PureBright 4K material or the Da-Lite HP material, if you can set the projector up in that certain position, you will not notice any hot-spotting. For both the Da-Lite High Power and the PureBright 4K, the projector and the viewer both need to be positioned in a precise way (very centered, both horizontally and vertically), with very little flexibility. The fact that Da-Lite's material does not have a 180 degree viewing angle means that it does have hot-spotting. Only a material with perfect lambertian reflectance has no hot-spotting, and that material will always be 1.0 gain (or less, in the case of non-white screens).

To the original question: get the 1.0 gain material - more than enough brightness for 3D, full flexibility of projector placement with full flexibility of seating arrangement.

Thanks,

Milosh
Edited by miloshj - 12/13/12 at 3:01pm

Thanks for the explanation. Maybe I'm misinterpreting the term 'hot-spotting'. Does hot-spotting refer to shimmer on the screen or to more light seemingly concentrated on the center of the screen (light-falloff as you go to edges/corners, like vignetting)?

Thanks.

Hot-spotting is when a part of your image, or a "spot", on your screen is brighter than the rest of the screen/image surrounding it. It's typically in the center, but it can change depending on projector and viewer placement - in other words, the latter part of your statement.

Thanks,

Milosh

Ok, thanks. I stand corrected then. I was talking about shimmering; i.e. sparkliness on the screen, which the HP/HCHP materials do not show (but screens like 1.8 gain glass-beaded Greywolf do show).

Yes the HCHP/HP screens do have 'hotspotting' since there's more fall-off as you go out from the center of the screen. I quantitated the raw signal at the center vs. upper left & upper right corners for a matte 1.1 screen (Elite), High Power (HP), and the High Contrast High Power (HCHP) screens.

Results below:


Camera was positioned 1.25x screen-width away from a 110" matte white Elite (1.1 gain screen) on which samples of HP or HCHP were overlayed at upper left, upper right, and center positions. Camera was placed approximately at the level of the projector lens, but shifted a bit to the left... hence the increased light fall-off for the upper right patch for the HP/HCHP screens.

You can interpret the increased bell-like shape of the HP/HCHP curves as indicating more hotstpotting than the 1.1 gain screen; the latter's fall-off is actually probably due to the projector itself displaying vignetting. So keep in mind that part of the bell-like shape of the HP/HCHP curves are due to projector vignetting; hence the curves are convoluted by both projector vignetting + hotspotting due to the material itself.

Interestingly, in my own studies, HP tends to hotspot a tiny bit more than the HCHP (within a reasonable viewing cone, outside of which the HCHP falls off faster), since the center vs. corner ratios tend to be higher for HP than HCHP in my setup. But that's for another thread

Hello all, can someone answer this? I have a similar question. I just ordered a 120" reference electric from Dave (experienced the same customer service discussed here...the reason I placed the order) but I'm really worried it won't be bright enough. I jumped on the Acer H9500BD from new egg ($1199). Like many, I'll have a combo living room/theater room that will have some ambient light. And we'll be watching some 3d as mentioned above.

I read some posts where guys were having to put in black out measures for this screen and thats not an option for me. I've got the typical off white ceiling and tan walls.

I'm dropping this screen down in front of the less-than-a-year-old 63" plasma we have. The wife isn't on board with this plan! lol But just like when I moved from the 50" to the 63", she loved the picture and was soon on board. So....should I opt for something (assuming I can pause my order) with more gain or will I be OK? Thanks