Hello again,
If I wanted a setup outside with rear projection, using an evo 1.2, what would be the best material for constructing the screen?

I don't know about "the best" material. But someone posted this a while back. It seems like a good alternative.



They have a number of other rptv screens as well.

Thank you

http://www.gi-info.com/projection_screens_rear.html

They have a clearance sale right now for 4:3 138" rear projection screen for $100

Excellent!
So I could set that screen up with a frame, place the projector in the rear of it, and be good to go? Would this work outside with decent amount ambient lighting? (Dusk)

It should work, the evo is no brighter than a crt pj. However, the manual doesn't state that you can flip the image horizontally for rear projection use so if you intend to use it this way, all of your images (starting with text) are backyards

Put a small mirror in front of the lens to reflect the image to the screen. Problem solved.

Tgreenwood

Tgreenwood is absolutely correct.Just make sure its a Front-Surface mirror.You will lose some lux and there will be ghosting if you use a regular rear-surfaced mirror.



-Elb

So, if I set this up in the front yard, I'll be able to watch it out back?