QUOTE(littlefoot @ Feb 11 2006, 11:08 PM)

A couple of years ago I worked a very little bit with one of those tiny surveillance video cameras. It was really cool. Resolution was good. The focus range was good. I have no idea how you could set something like this up in the woods. That's just a thought I'm throwing out there to those of you who are interested.
Those are my thoughts for tonight.
I work with those cameras a lot, littlefoot. The aperture is very small (essentially a "pinhole camera", thus the depth of field), most are CMOS instead of CCD (much lower visible light response in CMOS) and the resolution is far inferior to a good handheld digital. And the cheaper ones (read that as X10) have a very limited, fixed gamma range.
But that's only part of the problem. The tiny camera is the cheap and easy part. Either recording or transmitting to a recorder is the more expensive and logistically difficult part. "Unlicensed" transmitters are so low in power that they won't send the signal far enough for them to be useful (unless the critter is actually in the backyard).
I'm putting together a system intended to do the job. It includes a motion sensor to save on batteries, infrared illumination (and a light sensor to tell when that isn't needed), and an on-site digital video recorder, with Velcro to hold it on any convenient tree limb. I may even throw in a solar charger--The battery within the miniature DVR is good for only two hours, but the 40 Gb disc can hold up to 80 hours. I expect to have about $1200 in it. When I'm done, and it's installed, it will look like a squirrel's nest.
I already have the DVR ($800), camera ($160), a small solar panel ($40). Still looking for the right battery (Lithium Ion, preferably) and the best IR array. WalMart has the Velcro and hot glue sticks and I have plenty of twigs and leaves.
What will come out of this rig is digital video ready for viewing on a computer (transferred via USB). The DVR also has a (very small) screen on it for field review. A future "upgrade" will be wireless (maybe using the IR array) transfer to a laptop without dismounting the camera rig.
If I can make it work, regardless if I capture footage of Bigfoot, I'll post the bill of materials and schematics...along with lessons learned... for anybody who is interested.
I have in mind, a power line clearway through the Hoosier National Forest...which begs the question: is there a consensus on what is the best food bait?
edit: littlefoot, I almost forgot to ask, in your microsopy did you ever get to work with a Lyotte filter?
Oz