Check out http://thermal.com/see_the_unseen.html. Seek shows a range of uses. Going through their website was very interesting, especially the comparison when showing images at the three distances. As for it usefulness, anything that's new will take time to figure out how to use it but once you've seen what it does, I'm sure you'll wonder why you didn't get one earlier.
11/23/14 at 7:14am