Choosing the Best Projector?

Question

I am installing a projector/screen system in a open lobby setting. This lobby has daylight(minimal) as well as flourecent lighting. I need to get a projector that will be best visible to onlookers. Should I go for one with higher contrast ratio or rather higher lumens? If I get an HD projector with 6000:1 contrast and 1100 lumens, is it better (viewability and cliarty to a person looking at the screen) than say a 2500 lumen DLP Projector?

Answer 1

Contrast is "destroyed" by ambient light (Link 1), although it stands up better if the projector is very bright. So there is no point in a low brightness high contrast projector. You need the brightest you can get with, preferably, a contrast ratio of 1500:1 or better.

That said, you would really benefit from a screen designed to reject off axis light. Not necessarily the best choice, but for a review of one option see the 2nd link.

Answer 2

always go for more lumens. contrast ratio means nothing if the picture is not bright enough.