I was wondering what you guys think about projecting image onto a black wall. I have a optoma gt750 projector. Currently i'm projecting on white painted wall. I was thinking about painting it black, I've read that you get sharper, brighter picture on black paint. Just want some recommendation. I'm going this route because i think it will be cheap, don't have any budget to get a screen right now. Thanks everyone
Yes, it's true that you can produce a very watchable image on a Black Surface, but the amount of lumens required is disproportionate to the size of image you can obtain.
If you shot a 82" diagonal image (16:9 @ 40" x 71") you'd get 68 foot lamberts....on a 1.0 gain surface.
But on a Black surface...something akin to a 0.1 gain surface....... about 2 foot lamberts....if that.
The smallest image the 750 can manage is 57" diagonal (28" x 50" @ 3' Throw) and at 0.7 gain you'd get 97 fls
With 0.1 gain...maybe about 4 fls at the uttermost. That would be fortunate.
Still, you can try what you want...but if you were wise, you'd haul up short and instead settle for a ultra dark Neutral Gray.....a image size as small as you can accept, and a Throw distance that optimizes your lumen output.
Ask for "Duration" Flat Base
SW paints ain't the Cheapest around....but hey....when you going dark gray, you need some quality in the constitution of the paint more than you do with a Flat White.
|Optoma Gt750 Projector|