Comp_atkins,
Have you thought about moving it to the otherside of the wall and poking the lens through? I just saw this in
Cold Steel's Plog yesterday. Go to post #53. If you want to hide the lens, then put a framed picture over it until your ready to use it.
There are many advantages:
1) Keeps clutter out of the family room (wives like that)
2) You won't ever have to move it to vacuum.
2) Makes it more difficult for the kids to damage the pj
3) You won't hear those noisy fans
4) YOUR PICTURE GETS BIGGER! (That should be enough of a reason to do this)
5) If you hook it up to the computer behind the wall, you can use a
wireless keyboard and surf the internet as a family.
And with the extra distance I believe you could use the pro lens. The pro lens has a larger diameter, so it gathers more light, and your image will be brighter, and the bigger triplets such as the pro or Buhl have better focused corners.
I went with an Buhl lens. The Buhls are periodically offered on ebay. I picked mine up for $80. Just as good as the pro, but cheaper. Check out Arizona's Forum Topic "
The Brightest Triplet", where many different triplets are compared.
I hope this helps...
Cheers!
Fulcrum