Formula with best mix of accuracy and gain - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

Old 11-09-12, 09:33 AM Thread Starter
Senior Shackster

Join Date: Jul 2011
Location: Kirkland, WA
Posts: 100
Re: Formula with best mix of accuracy and gain

Thanks for the reply. I actually zoom to achieve 2.35 but I took these measurements zoomed out. So that 16:9 fits on the screen with leftover space to the left and right. My 16:9 diagonal is actually 95". The calculations I did were correct for that number. Im thinking that instead of painting I may be better served by just buying a new bulb.
Silas is offline

Old 11-09-12, 10:48 AM
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Joe

Join Date: Oct 2011
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My System
Re: Formula with best mix of accuracy and gain

That seems a bit odd for a lamp that only has 500 hours on it - it may not be a bad idea to contact the manufacturer and see if there is anything amiss with the lamp and if they would replace it.
ALMFamily is offline
Old 11-09-12, 11:10 AM Thread Starter
Senior Shackster

Join Date: Jul 2011
Location: Kirkland, WA
Posts: 100
Re: Formula with best mix of accuracy and gain

Quote:
ALMFamily wrote: View Post
That seems a bit odd for a lamp that only has 500 hours on it - it may not be a bad idea to contact the manufacturer and see if there is anything amiss with the lamp and if they would replace it.
Oops, I misspoke. It actually has around 615 on it, but your point still stands. it shouldn't be THAT dim.

Now, when I open the iris, I get about 10fL, which is around 280 lumens. Better, but still pathetically dim.
Silas is offline
Old 11-09-12, 11:56 AM
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Re: Formula with best mix of accuracy and gain

Quote:
Silas wrote: View Post
Thanks for the reply. I actually zoom to achieve 2.35 but I took these measurements zoomed out. So that 16:9 fits on the screen with leftover space to the left and right. My 16:9 diagonal is actually 95". The calculations I did were correct for that number. Im thinking that instead of painting I may be better served by just buying a new bulb.
A, ok, sorry then for the mixed up...
Yiannis1970 is offline
Old 11-09-12, 01:58 PM
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Don

Join Date: Oct 2007
Location: Central PA
Posts: 3,772
Re: Formula with best mix of accuracy and gain

Silas, at this point I wouldn't recommend painting your white Sintra screen until you talk with JVC and find out if there is a problem with your bulb or not. At the lumens you are currently dealing with there is no DIY solution that is any higher gain than your screen and color neutral.

Harpmaker is offline

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