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jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
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| Posted: Thu Jun 21, 2012 6:32 pm Post subject: Best throw distance for G90 ? |
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I know, I know, we went down this road before but I never got a definitive answer. I have a few inches to play with on the installation of the factory mount. Anybody know what the correct throw distance SHOULD be ? 110 inch screen 16 9 aspect ratio. Give me a number. The closer I am the less I have to mess with. Thanks in advance.
jeff
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Thu Jun 21, 2012 6:45 pm Post subject: |
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About 2 feet, and that's only IF I can pick it up.
The best throw distance for any projector is usually the point where first the image is as large as possible on the CRT faces without running the projector out of tolerance, and then moving the projector back until the image fills the screen.
The throw distance calculations are always just a safe and general guideline.
NEC was a huge abuser of this, causing a lot of burned tubes by running much too small an image on the CRT faces.
For my NEC, it turned out to be about 120" from my 110" 16x9 screen.
In the end, max out the active image on green without touching the sides of the tubes and then move it physically to fit the screen. Done.
Marc
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dturco
Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland
TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner
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| Posted: Thu Jun 21, 2012 6:58 pm Post subject: |
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Ok 118" from the lens barrel to the screen.
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jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
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| Posted: Thu Jun 21, 2012 7:19 pm Post subject: |
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current throw on the G70 is 128".
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jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
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| Posted: Thu Jun 21, 2012 7:58 pm Post subject: |
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Thanks, I will get it close and make the screen temporarily mobile.Solves most of the issues.
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