Dalite High Power or Acousticlly Transparent? - Page 3 - AVS Forum
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Digital Hi-End Projectors - $3,000+ USD MSRP > Dalite High Power or Acousticlly Transparent?
mark haflich's Avatar mark haflich 05:50 PM 01-03-2013
happy New year Cam Man. Talk about posting on an old thread. Man I miss Cold machine.

erkq's Avatar erkq 05:56 PM 01-03-2013
SMX was going to release a 2.0 gain AT screen but never did. I guess they couldn't get the yields high enough. I would have paid almost anything for that!!
Cam Man's Avatar Cam Man 12:02 PM 01-04-2013
Quote:
Originally Posted by mark haflich View Post

happy New year Cam Man. Talk about posting on an old thread. Man I miss Cold machine.

Back at you, Mark. smile.gif

Yep; goin' deep for this one. biggrin.gif
noah katz's Avatar noah katz 03:36 PM 01-04-2013
Quote:
Originally Posted by Cam Man View Post

From your mouth to the HT God's ears; the Holy Grail of screens. smile.gif I know that some AT screen makers have looked into coatings for weaves, but the issue is clogging the openings. You would think that they could make the fabric strands out of a High Power-like material, then weave it into a fine surface that would have gain.

Might be problematic weaving without damaging the coating.

Why not a perforated HP?

That could kill, or at least injure, two birds with one stone for some - the light lost to the perforations would effectively add a degree of grayness
mrlittlejeans's Avatar mrlittlejeans 10:31 PM 01-04-2013
My understanding is that the Stewart screens only lose 10% of the light output due to the perforations. I've often wondered why Dalite doesn't offer a perfed high power. It would be awesome and I'd get one in a heartbeat.
mark haflich's Avatar mark haflich 05:47 AM 01-05-2013
Perfing things right isn't easy, lots of hand labor and using an expensive machine with a very very expensive needlepoints die. .Stewart screens are expensive and the perfing adds considerably to the cost, perhaps about 30 to 40%. Perfing ala stewart to da-lite HP would probably by itself be multiple times the cost of a non perfed HP.
airscapes's Avatar airscapes 06:12 AM 01-05-2013
Quote:
Originally Posted by mark haflich View Post

Perfing things right isn't easy, lots of hand labor and using an expensive machine with a very very expensive needlepoints die. .Stewart screens are expensive and the perfing adds considerably to the cost, perhaps about 30 to 40%. Perfing ala stewart to da-lite HP would probably by itself be multiple times the cost of a non perfed HP.
Not to mention the HP would look really bad..2.4 gain in one spot 0 in another.. I would think the holes no matter how small would stand worse than dead pixels.
Cam Man's Avatar Cam Man 11:31 AM 01-05-2013
I think you all make good points. There are discussions to be had on the the comparative pros and cons of microperf and weaves. I have favored weaves such as SMX, Seymour, and Dragonfly for their acoustic benefits, mild gain, and fine texture which is invisible beyond about 8'. Even their 2K versions have far more and smaller openings per square unit than microperf. Microperfs can be seen farther away than the mentioned weaves.

There is plenty of evidence around over the years that microperf has acoustic issues, and weaves have few. Would we all find those microperf issues overwhelming or even noticable? I just don't have a ton of experience with microperf.
The gain coating

I actually have a source for a microperf 2.2 to 2.4 gain screen material. It is even approved for RealD passive 3D. I have never gone that path due to the issues above, and my preference for very good uniformity arcross the viewing area...plus the price being over $7K for a 125" wide 2.35AR screen.
erkq's Avatar erkq 11:35 AM 01-05-2013
Quote:
Originally Posted by Cam Man View Post

...
I actually have a source for a microperf 2.2 to 2.4 gain screen material. It is even approved for RealD passive 3D. I have never gone that path due to the issues above, and my preference for very good uniformity arcross the viewing area...plus the price being over $7K for a 125" wide 2.35AR screen.

They must hand-drill every perf! Not sure I'd pay that even for a weave. So, I guess I wouldn't pay anything...
mark haflich's Avatar mark haflich 11:44 AM 01-05-2013
Perfs are punched using a die, I don't remember exact dimensions, 2 2 3x3 something like that. A zillion needels per sq inch and if one breaks, the die is useless and they cost around $40K to have made.
Cam Man's Avatar Cam Man 01:57 PM 01-05-2013
Quote:
Originally Posted by mark haflich View Post

Perfs are punched using a die, I don't remember exact dimensions, 2 2 3x3 something like that. A zillion needels per sq inch and if one breaks, the die is useless and they cost around $40K to have made.

Holy crap! eek.gif

You would think that the weave screen makers could come up with an electrostatic-based painting process that attracted droplets so tiny that they settle onto the weave such that they are too small to fill the gaps detrimentally. A 2.0 gain woven screen that would retain some decent uniformity (like SMX may have been) would sure be a useful product.
Browninggold's Avatar Browninggold 02:30 PM 01-05-2013
Quote:
Originally Posted by scottyb View Post

I posted this here because I know allot of you already have one or the other of these and don't visit the screen forum.


I know these are kinda far apart in screen choices but it's where I am.

Total light control, Sony VW60, 92" wide screen.

Just looking for opinions and pros or cons.
I didn't read the whole thread just this one...anyways in a living room setup with picture window etc....I have a Vutec 110" AT screen that drops down from the ceiling (electric) paired with a Sony VW90ES and was plenty bright enough for TV daytime viewing.
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