Originally Posted by Andrew67
So I've been toying with the idea of a projector. The CineGrey 5D looks like it would meet my needs (ambient light rejecting) and budget. Reading through this thread though, it appears to be a bad fit for my room. The projector would be ceiling mounted (8' ceilings, tight-ish to the ceiling), about 12-13' from the wall, seating distance at 12', and a approximate 92" screen. Projector wise it would be matched to an Epson 5025 or Sony VPL-HW40ES.
Is the consensus still that this would simply be a bad fit due to hot spotting, distance and the amount of vertical lens shift I would need?
Is your screen 92 inches wide or Diagonal?
Anyway, if your screen is 92 inches wide, (105 inches diagonal) you should have a minimum of 11.5 feet of throw. (1.5 times the width)
At 92 inches diagonal, (80.25 inches wide) you should have a minimum of 10 feet of throw.
At these minimum throw distances the hotspot shouldn't be too intense. At longer throw distances, the hotspot intensity will be further reduced.
The Lens shift doesn't have any effect on the hotspot itself, but using too much lens shift may create slight barrel distortion and chromatic aberrations.
A 92 inch screen (92 inches diagonal or 105 inches diagonal) at a 12 foot viewing distance is a relatively small screen. Either one of those projectors has lots of lumens for a screen that small. You may not need a specialty screen.
Get the projector first and project onto a bare wall or a white sheet to determine if a specialty screen is necessary.