The brighter the projector the better the contrast .(with some exceptions.
Is it a fixed screen ?
you can get a fixed lens as long as you give them the specs i.e.. distance , W x H angle of throw . (less expensive usually)
If the room could change get adjustable.

As to ir try 1 to start . If you don get the required coverage put one in each opposing corner ,you can always add more. Keep
them away from floressents and direct sun , unless you get cfl friendly (they don't always fix the problem)

Don't blind the target by being too close to screen with it.


This message was edited by kabster on 06/19/02 02:23.01.