Originally Posted by Hoosierhoo
To answer your questions first...Walls and ceiling are painted a dark blue. The light is coming from a bank of west facing windows behind the projector (screen is facing the windows). Unfortunately, not much option as it is a relatively long, skinny room. And full blackout blinds or curtains are not an option.
Room is about 20’ total length. Projector will be at the location of the current ceiling mount, 11’8” from screen. Seating is currently at about 10’ and can move comfortably back to 14’ or so.
I just purchased an Epson HC3200, recognizing that the light situation would wipe out most of the added benefit of the 5050UB.
To phrase the question another way - is the Aeon close enough in ALR capability and screen quality that the extra screen size would be worth it? Or would I be taking a big hit in image quality by moving away from the Stewart?
ALR screens also must be placed at a certain distance to avoid artifacts. The recommended distance is ~1.9x throw ratio.
The difference between the Cinegrey 3D and Stewart will not be that big. However angular ALR screens act like a mirror and will reflect any light at the same angle. This is why no light must come from the same direction as the projector. Blinds that are not opaque will let in too much light. IMO that room is not compatible with a projector setup during the day.
You could try a low negative gain and some type of blinds, but the image will still be severely affected.
The advantage of projectors is diagonal. It's not worth using a 90' screen since you mentioned daytime use.
If you're going to go with the projector route use the unit for a while on the wall or some kind of surface to determine the proper size. The general ratio is 10-12" for every foot in distance. So for 10' that would mean 100 to 120". I would go for a larger 130" because movies look better on a larger screen. An 125" scope screen would be ok, along with the 5050UB that has motorized lenses. With the 3000 series if you want to change the aspect ratio, i.e. watch something in 16:9 it has to be done manually. And a white screen.
This is of course for use when there is no ambient light, artificial or natural.
As I mentioned above, it depends on what type of content is watched, and how much of it is watched during the day. Most content is dark. So if most of the viewing is going to be done during the day with regular content a TV would be more suitable.