We use this under the deck, looking through the latticework.http://www.axis.com/products/m11_series/
This 1/4" vinyl material is very useful. Cut to size for the slots, single screw mounts camera. Slide it in from the back. Enclosure is mounted upside down, and is nice because it is easy to adjust and does not move once set (pretty easy to pick up for about $20 ea).
Actually swapped out a P1344 (which was a tight fit in this enclosure) to use elsewhere, when we got a deal we could not pass up on the M1113. Do miss the autofocus on the P1344 though...
Lens is a standard 5-50mm Bosch.