Originally Posted by digitalnofx
Ftoast, thank you for your reply. I wanted to keep the mobility of the 2045, so for that reason I chose to go with an Elite Screens 100" manual pull up model. Could it be the flat beige wall absorbed even ambient light while the 1.1 screen reflects it all?
Yeah, partly. The darker surface (the wall) absorbs ambient light and projected light which dims both equally, BUT when the room is decently dark inside and the projected image is lighting up the whole room, then the darker screen/wall will help lower the amount of light reflecting back onto the screen by dimming the image just enough (if you pick the right shade) so it lights up the room less AND the lighting up it does still manage around the room will get dimmed yet again by the screen when some does get reflected back.
Mostly though the darker screen like this will help because it'll dim the entire image down closer to theater specs. As long as the room isn't too bright an image around 15ftL should be plenty bright for 2D. Having the whole thing brighter than that (including its attempt at blacks) can make the darker scenes look a little worse.
At 100", your 2040 is over TWICE as bright as you need in a dark-ish space and a 0.5gain screen or the paint-color "Veil" would help the image look as good or better than it did on the beige wall.
If the screen was cheap enough or you find one that is, you can simply roll a coating of ~$10 flat interior paint tinted "Veil" onto the screen and leave it open to dry thoroughly for a few days.
Or you can paint a $10-15 sheet of 4X8ft panel (anything fairly smooth) and hang that anywhere you'd like..or you can paint some BOC or other fabric and make a soft screen that you can roll up and move around more easily.
Or if your screen is cheap enough BUT you like its brightness some times, you can paint the back of it.
EDIT: unless the screen has a support pole or something blocking part of the back..because that doesn't sound fun to watch.