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» Film-Tech Forum   » Operations   » Digital Cinema Forum   » Do You Prefer Some Type of High Gain Screen With Digital Projection?

   
Author Topic: Do You Prefer Some Type of High Gain Screen With Digital Projection?
Richard Orsak
Film Handler

Posts: 44
From: Hallettsville, TX USA
Registered: Sep 2007


 - posted 12-11-2012 02:23 AM      Profile for Richard Orsak   Email Richard Orsak   Send New Private Message       Edit/Delete Post 
If a person has plenty of light with his projector, is there an advantage of going with say a 1.4 Gain Screen? This seems to be a common recommendation to me...

Thanks!

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Antti Nayha
Master Film Handler

Posts: 259
From: Helsinki, Finland
Registered: Oct 2008


 - posted 12-11-2012 05:18 AM      Profile for Antti Nayha   Email Antti Nayha   Send New Private Message       Edit/Delete Post 
No. A matt screen will always give you the best light uniformity and viewing angles.

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Marco Giustini
Film God

Posts: 2567
From: Reading, UK
Registered: Nov 2007


 - posted 12-11-2012 06:36 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Quote Antti. High gain screens are EVIL for me. Even when you don't have enough light. You should install a high gain screen in the perfect auditorium with the perfect screen frame to have some advantages. What usually happens is they install a high gain screen in a short throw room on a big flat frame, take a measurement on that tiny hotspot in the middle of the screen and boast huge numbers (and adjust the lamp to the tiny little spot!)

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Jock Blakley
Expert Film Handler

Posts: 218
From: Melbourne, Victoria, Australia
Registered: Oct 2011


 - posted 12-11-2012 07:30 AM      Profile for Jock Blakley   Email Jock Blakley   Send New Private Message       Edit/Delete Post 
Agreed - go with matte wherever you can. Even if you haven't got enough light; get a brighter lamp.

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Antti Nayha
Master Film Handler

Posts: 259
From: Helsinki, Finland
Registered: Oct 2008


 - posted 12-11-2012 08:07 AM      Profile for Antti Nayha   Email Antti Nayha   Send New Private Message       Edit/Delete Post 
Or get a second projector if you want bright 3D. [Cool]

That said, something like a 1.4 gain screen can be an acceptable compromise, depending on room geometry.

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Randy Stankey
Film God

Posts: 6443
From: Erie, Pennsylvania
Registered: Jun 99


 - posted 12-11-2012 08:57 AM      Profile for Randy Stankey   Email Randy Stankey   Send New Private Message       Edit/Delete Post 
The auditorium at Mercyhurst is long and narrow. About 100 feet long and 60 feet wide. (Somebody told me that the room is designed to the golden ratio.)

The screen is a 1.5 gain. In that auditorium, it works well. Bright picture without too much hot spotting.

Because the room is narrow, it is impossible to sit too far off axis.

In this case it works but, in another room, I would get a matte screen.

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Richard Orsak
Film Handler

Posts: 44
From: Hallettsville, TX USA
Registered: Sep 2007


 - posted 12-12-2012 11:25 PM      Profile for Richard Orsak   Email Richard Orsak   Send New Private Message       Edit/Delete Post 
Ok...I see better what everyone is thinking, I plan on having plenty of light on the projector side, so it appears "Matte" is still a solid choice...thanks!

Richard

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