If the screen looks greyish when there is no reflected light or stray light in the room, then the culprit is the projector, not the screen. This assumes you have already adjusted the Brightness control to set the black level, and that there is no range setting mismatch (limited vs full).Based on my research so far, I'm guessing my (9 year old) screen is the biggest factor, but before biting the bullet and buying a new screen, I was hoping for some advice from more experience folks.
Reducing the Contrast control reduces the white but has negligible effect on the black, so you’re degrading the contrast ratio which was not great to start with. This is where a manual iris would have helped - reduce the overall level (actually black even more than white), but the 295 doesn’t have one.I switched the projector settings to eco mode and additionally had to reduce the contrast from 100 to 50 (otherwise the whites were still so bright that they caused some eye strain). Even with this reduced brightness, the black levels just aren't very good. Any suggestions?
To reduce the overall brightness while preserving (not improving) the projector’s native contrast, you can
- use a neutral density filter in front of the projector lens, or
- use a very low gain (~.5 gain) screen