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Thermio
Joined: 15 Jan 2008
Posts: 36
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| Posted: Mon Mar 08, 2010 10:25 am Post subject: Throw length for NEC 144s when mounted on a Barco 808s |
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Hello all,
There are NEC144 lenses mounted on my Barco 808s.
I have been running my adjustments a bit hard to get the picture size down to 8ft when mounted as per Barco manual. Would anybody know how to figure the correct throw with these lenses. Before I drill more holes in my ceiling I'd like to have a ball park for where to drill!
Cheers,
Thermio
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Tue Mar 09, 2010 2:02 am Post subject: |
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1.3x width, assuming they function as they did on a NEC.
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Thermio
Joined: 15 Jan 2008
Posts: 36
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| Posted: Tue Mar 09, 2010 4:45 am Post subject: Got it, thank you. |
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Turns out that works out right along with the NEC manual and my buddies practical observation of about 5" less than the Barco. With triple redundancy I will now drill another set of holes in the concrete ceiling. I look forward to not having to stretch the adjustments. Thank you.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Tue Mar 09, 2010 6:29 am Post subject: |
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Did you have the 808 set up originally with HD8 lenses ?
The HD144s focus about 8-12 inches shorter but have you maximized the raster ?
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