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Author Topic: 2D screens
Bob Ezra
Film Handler

Posts: 67
From: Carbondale, CO, USA
Registered: Apr 2001


 - posted 08-04-2013 09:59 PM      Profile for Bob Ezra   Email Bob Ezra   Send New Private Message       Edit/Delete Post 
Any thoughts on 2D screens and digital projection? Best quality Harkness Hurley MDI? Mini Perf? Moire? Harkness seems to be popular but they are thin and seem vulnerable to tears,

Thanks

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Harold Hallikainen
Jedi Master Film Handler

Posts: 722
From: Denver, CO, USA
Registered: Aug 2009


 - posted 08-04-2013 10:15 PM      Profile for Harold Hallikainen   Author's Homepage   Email Harold Hallikainen   Send New Private Message       Edit/Delete Post 
I'd be interested in hearing if anyone has tried "woven screens." I'm hearing these are pretty much acoustically transparent and do not have the severe high frequency rolloff and other effects of perforated screens. I understand the optical gain is pretty low and that they are available in limited size (not big).

Harold

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Marco Giustini
Film God

Posts: 2536
From: Reading, UK
Registered: Nov 2007


 - posted 08-05-2013 07:20 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
I used it in my Home Theatre. I had a microperf Harkness before. I could see the holes. The woven one was great but moiré was still an issue, I should have installed the fabric diagonally.
I'm not sure what would the difference be when installed in a big auditorium though.

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Antti Nayha
Master Film Handler

Posts: 258
From: Helsinki, Finland
Registered: Oct 2008


 - posted 08-05-2013 11:23 AM      Profile for Antti Nayha   Email Antti Nayha   Send New Private Message       Edit/Delete Post 
Last winter, I had this tiny one-screen cinema installed with Screen Excellence's Enlightor 4K woven screen.

My main reason for the material selection had more to do with picture than sound. It's a 45-seat room, and the front row is so close to the screen that the holes in the original macro-perf screen were really distracting. Even micro-perf would have been clearly visible.

The Enlightor 4K is expensive stuff, but the cinema in question could afford it because the screen is only 4 meters (13 feet) wide. The material is really good - no sign of moire with DCI projection, and the 35mm screenings also look much better now. There is a fine texture, but it's not really visible unless you really look for it. Less visible than microperf, anyway.

The gain is supposed to be 1.0, but I measured it at about 0.9 or even a bit less. Highly recommended for small venues and screening rooms if you can afford it.

And yes, the sound was audibly improved as well.

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Marco Giustini
Film God

Posts: 2536
From: Reading, UK
Registered: Nov 2007


 - posted 08-05-2013 02:13 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Years ago when I was looking for that material, I found a post or a page where one of the sellers said that that fabric was actually the fabric used for sun loungers!
You can still find the fabric at a reasonable price from a supplier.

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Sam D. Chavez
Film God

Posts: 2074
From: Martinez, CA USA
Registered: Aug 2003


 - posted 08-05-2013 03:14 PM      Profile for Sam D. Chavez   Author's Homepage     Send New Private Message       Edit/Delete Post 
These are used at a few of the mix rooms at Skywalker. Everyone involved loves them. Pricey though.

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Marco Giustini
Film God

Posts: 2536
From: Reading, UK
Registered: Nov 2007


 - posted 08-05-2013 04:48 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
The only downside - at least with mine and at 3m distance - you could see a sort of texture. Much better than holes and anyway the manufacturer has developed a fabric much more dense, which I have never tried.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12084
From: Annapolis, MD
Registered: Dec 1999


 - posted 08-05-2013 05:54 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
I've done one room that had a woven screen. No sound issues and didn't notice any moiré on a 2K image. Though we didn't sell/install it, it was from Screen Research http://www.screenresearch.com/website/fabrics_clearpix.php

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Antti Nayha
Master Film Handler

Posts: 258
From: Helsinki, Finland
Registered: Oct 2008


 - posted 08-06-2013 03:31 AM      Profile for Antti Nayha   Email Antti Nayha   Send New Private Message       Edit/Delete Post 
Also see this excellent comparison of different woven screen materials. They found out that the Enlightor 4K had the finest texture and recommended it for a minimum viewing distance of 8 to 9 feet. They also measured the gain to be 0.84.

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Marco Giustini
Film God

Posts: 2536
From: Reading, UK
Registered: Nov 2007


 - posted 08-06-2013 12:55 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Excellent indeed.

Mine was the previous version of CenterStageXD.

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Lindsay Morris
Expert Film Handler

Posts: 222
From: Darlington, WA, Australia
Registered: Sep 2002


 - posted 08-12-2013 05:13 AM      Profile for Lindsay Morris   Email Lindsay Morris   Send New Private Message       Edit/Delete Post 
Very interesting information indeed...just what I wanted re solid screens and how they stack up against perforated screens.

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