I actually ordered this projector last week, based on what my basement dimensions will allow I may have to use most of the zoom to install it. If I have it back at 15' the projector will cast the image over my seating position. I have a low ceiling in basement. If I have it between 13 and 12', it should be ok. Of course I could have gone with a smaller screen to avoid this issue but I want the largest screen the room will allow. You would also want to leave room for a black border around screen so I'd actually take a few inches off for that.
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