I need to purchase a ceiling-mounted screen for my new Infocus 5700.
I have an 8'x4' window that I was hoping the screen would cover. Is this possible or will light still penetrate through the back of the screen? What should be the screen width to cover the window so no light shines from the sides?
Also, I have 93" ceilings. At 13' away from the screen there is a beam which comes down 1' and is 2' wide. I can place the projector in 3 places:
1) suspended from the ceiling in front of the beam (at roughly 13' away)
2) suspended from the ceiling behind the beam (at roughly 15') away
3) on a shelf 20' away
What is the best placement for the projector? Naturally, I would like to place the projector on the shelf because it will give me the largest possible image size. Will the image be reasonably bright from this distance?
How high should the shelf be? 5' or 6' or does it matter at all?
Thanks for the help