Originally Posted by odyssey
You don't seem to understand that at least 500:1 refers to the projector ANSI CR and not the projector plus room ANSI CR. The screen has nothing to do with it. It's the only way to compare one projector to another. Otherwise, you would have to measure them in exactly the same room. As I noted, the G90 should be 150-175:1 for comparison. The HT-5000 has roughly three times the ANSI CR performance of the G90.
I understand that completely but you were implying that Art should be getting higher than 200:1 in his current setup to which I do not agree with.
This notion of measuring ANSI right through the lens is all fine and good but I don't agree that this should be an accurate way of measuring performance.
The screen and the room environment also play a pivitol role in over all performance and THAT is what should be considered the end result for ANSI performance in my opinion.
Hence being said, you mentioned to me that there should be a problem with 80 to one ANSI contrast in my room and I honestly think that if you were here, and saw it for yourself, you would change your mind.
ANSI is only part of the equation especially when you have a projection system capable of MEASURING over 200,000 to one on/off.
10 foot lamberts at 10ft wide unity gain with that kind of on/off performance and low APL performance completely negate the need to have a bright picture like what a 3 chip will provide. Having that kind of light is necessary for lamp based 3 chip DLP because of it's lack of ability to do high on off CR and inky blacks, and when I say inky, I mean CRT inky.
Now if tomorrow, Sim2 announced a 3 chip DLP with 200,000 to one on/off contrast measured and it was capable of doing 20 foot lamberts at 10ft wide then hell yes, I'd jump all over it.