AVS Club Gold
Join Date: Nov 2002
Location: Byhalia, Mississippi. Waaaay down in the Bottoms
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With a 122 inch screen, the height of the screen is 60 inches. At 7 feet for a ceiling height, you only have 84 inches total. That would mean that if you jammed the screen to within 4 inches of the ceiling, you would still only have 20 inches left between the bottom of the screen and the floor.
Now that you do not plan to have a second row of seats, that doesn't make nearly as much difference, but even so, you would need to have a very light absorbing ceiling, or the ceiling is going to light up and work to reduce your contrast on screen.
That Sir.... is all the difference in the world, & Y 120 inches is at best problematical.
Unless you tile the ceiling in front of the screen with Protostar panels. Then by all means, go to a 122 inches diagonal. (60" x 107")
I never suggest bottoming out on your Zoom, but placing the PJ with an 8 to 12 inches of the minimum throw only serves to increase brightness and therin alow you to run the projector on low lamp mode to achieve the very best possible black levels.
Yes.... you want to use a large fine grit sanding sponge.
To quote James T. Kirk;
"I'm laughing at the superior intellect"