I've seen it done.. There are lenses that are curved so much that the
projector can be mounted on the ceiling, just a few feet away from the
wall, and pointing sharply down and it will still project a square image.
Those are probably pretty expensive. If you're using the regular lens on
the projector, just position it as far away from the wall as you can - it
will work with keystoning and the proper angle.
5 to 7 hours seems fairly normal for videos that are on all day on a loop
in a gallery. Multiply that by 30 days for the show and that's how it
On Sat, Sep 13, 2014 at 12:33 PM, Rajesh Barnabas <rbarna...@gmail.com>
> I have 2 questions:
> 1) How do I project onto a wall from above without having people walk in
> front of it, what angle, would keystoning work for sharp angle?
> 2) Can you project for 5 or 7 continuous hours? Will that kill the bulb?
> Anyone with experience with this would be appreciated...
> Here is mock up of installation about 18 foot space (in this picture
> below, we would like to project *onto* the west wall by mounting
> projector on the top of the east wall)
> [image: Inline image 1]
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