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post #1 of 11 Old 02-27-2012, 08:07 AM - Thread Starter
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Hey Guys,

So my uncle apparently built a home theater and "claims" to have a 15 feet by 10 feet screen - so thats 50 feet diagnoal that is 600 inch screen.

Now what projector could he possibly be using to get that sort of a screen?

Please advise.
RJ
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post #2 of 11 Old 02-27-2012, 08:37 AM
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Check your math. This is "only" about 207" diagonal assuming 16:9 aspect ratio. You'll need some lumens!
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post #3 of 11 Old 02-27-2012, 09:04 AM
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It seems odd that if he were building a home theater that he would have a screen with 10' by 15' dimensions. For a widescreen he would make the screen 15' by 8.42'. That leaves over 1.5' of wasted space. But there are plenty of light cannons out there that would light up that size screen. The BenQ SP890 is what immediately came to mind. You would need a throw distance of just over 24' to do it with that PJ. You can go to Projector Central and search by feature to get a list of PJs that will work with his screen size and throw distance.

http://www.projectorcentral.com/projectors.cfm
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post #4 of 11 Old 02-27-2012, 09:14 AM
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A 15 foot wide screen doesn't need a light cannon if the fabric is right.

I'm lighting a 13 foot wide screen on low lamp with brightness to spare (95ES), due to a high gain screen. My projo on high lamp (which is fairly average lumens) would light a 15 foot screen if it were HP or similar material.
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post #5 of 11 Old 02-27-2012, 10:16 AM
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Somebody needs to read up on the Pythagorean Theorem.
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post #6 of 11 Old 02-27-2012, 11:10 AM - Thread Starter
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Oops,

Sorry guys i had my math wrong..

Thanks for clarifying..

RJ
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post #7 of 11 Old 02-27-2012, 01:55 PM
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There are many Christie, barco, etc and other projectors that can go much much bigger. They cost a lot, but they are made for theather use.

David

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post #8 of 11 Old 02-28-2012, 10:03 PM
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So maybe if you got two projectors and dual-output,... assuming they were lined up right, it could give you enough light...Anyone know if this would work?

If this would work, you'd probable want to go single chip DLP or else you'd have to deal with panel alignment across two projectors... I'm sure at this size, screen door effect could be a factor if you're too close to the screen (unless you get 2 of the sony 4k projectors!!)

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post #9 of 11 Old 02-29-2012, 08:58 AM
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DPI and SIM2 have projectors which throw images that are as good as it gets in a price range half of the DCI units if that fits for you.

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post #10 of 11 Old 02-29-2012, 09:10 AM
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Quote:
Originally Posted by ranjitcool View Post

Hey Guys,

So my uncle apparently built a home theater and "claims" to have a 15 feet by 10 feet screen - so thats 50 feet diagnoal that is 600 inch screen.

Now what projector could he possibly be using to get that sort of a screen?

Please advise.
RJ

Seems like an odd ratio... Was he ballparking? 10'x15' would be 1.5:1, which doesn't exist.

Regardless, as another said that would be about 20' diagonal, or 247". Many projectors could do that, though to perform well the room would have to be dark, and have the proper screen.

Jason C. Turk
Technical Support, Customer Service, Sales and Installations
A/V Science, Inc.
Direct Line: 585-645-1004
Email: jason@avscience.com

Don't forget my nearly 13,000 posts under my old ID!

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post #11 of 11 Old 02-29-2012, 09:11 AM
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Quote:
Originally Posted by ranjitcool View Post

Oops,

Sorry guys i had my math wrong..

Thanks for clarifying..

RJ

Don't ever let it happen again. Kidding of course...

Jason C. Turk
Technical Support, Customer Service, Sales and Installations
A/V Science, Inc.
Direct Line: 585-645-1004
Email: jason@avscience.com

Don't forget my nearly 13,000 posts under my old ID!

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