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# 600 inch projector

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?

RJ

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Check your math. This is "only" about 207" diagonal assuming 16:9 aspect ratio. You'll need some lumens!
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
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.
Somebody needs to read up on the Pythagorean Theorem.
Oops,

Sorry guys i had my math wrong..

Thanks for clarifying..

RJ
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.
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!!)
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.

Art
Quote:
Originally Posted by ranjitcool

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?

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.
Quote:
Originally Posted by ranjitcool

Oops,

Sorry guys i had my math wrong..

Thanks for clarifying..

RJ

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