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Mark- Yeek! Is that difficult to do, especially if one has little knowledge of optics, little handy-man ability, and no handy-man equipment? I'm not sure I would have enough faith in my limited abilities to be worth saving money on a professionally built lens.

Thanks for the reply, Mark; I had figured this thread had seen all the replies it was going to see. Some very useful information. Looks like HE lens would be the way to go for my needs. But one question: What's "CA"? I'm sure I probably know, but I'm not figuring it out from the initials.

"Overscan feature"-- What is this, what's it do? Under what circumstances would you want it on and when would you want it off?

Hey all, newbie here so please be gentle... 16' x 13' family room. I really want a constant height set-up. I'm on a budget, so I'm thinking something like InFocus 4805 or SP5000 with a lens. My questions-- To figure out the layout of the room and potential projector placement, I've gone to...