Originally Posted by haroon malik
i would say a 30% drop should be in your calculations after the lamp stabilizes. The drop might be less [20%-25%] with this new beauty by sim2.
Those are real good numbers posted by alan. However, it's at 57 right now and the drop is continuous in the first 150 odd hours.
For a 12 foot scope screen this seems like the ticket. Since you have a 14 feet screen you may have to wait a little longer to confirm whether it can drive it or whether you will need quicker lamp changes. Good luck in your hunt.
yes that right but please note that this pr. use a new uhp lamp
design (unishape) that may is differnt fom normaly uhp
anyway this number more than confirm my estimate from 2000 lumen with post number 33 and thats very nice.
I guess a new pr. will have at least 2500 lumen with a lamp at 5 hours
and this at D65!
now the big question is the cr. the unit have.
even if its not as high as the pdf say (till to 35000:1) note that the light out that have be measured are not that far of from the pdf numbers
(up to 3000 lumen) may
now the cr. is also close to the pdf number.
may at arround 20000-25000:1 range
sad my screen is even with 2500 lumen to big as i like it very bright!