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Join Date: Jul 2002
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My RS20 bulb lost the majority of its brightness (don't have the numbers in front of me, but I think it was something like 70%) by the 550 hour mark. Definitely sub par performance in this regard compared to the other SHP, UHP, and Xenon bulb pjs I've owed in the past.
BTW, the amount of gamma and grayscale drift on my projector is extensive. Even with 400 hours on the bulb it was drifted considerably after the next 100 hours. It was the same was with my RS1.
I don't recalibrate it as often as I should, because to get the gamma right as well as the grayscale right all the way down to 5%, it takes several hours and is exhausting. But IMO to get the best performance one really needs to have the equipment, proper software, and know-how to do this on their own.