Nightvision cameras work with ranges, as where thermal cameras work with the temperature. Your best choice will be a nightvision camera as some of the things you will be photographing may not produce heat, therefore would be hard to pick up on a thermal camera.
You need a thermal camera, night vision goggles, rope or some sort of trap, a good Bigfoot call, some bait, and a camera to show proof that you caught him.
Yes one can purchase night vision camera online at eBay. eBay sells night vision security cameras, webcams and indoor and outdoor night vision cameras.
Vivatar makes a really good night vision camera. You can find good prices for Vivatar cameras on amazon.
No, the canon powershot does not come with a nightvision mode. Inclusion of infrared and, quite expectedly, thermal vision is both cost and size prohibitive for a standard consumer-level device.
infraredness
You can purchase a night vision ccd camera for under $300 and with free shipping at www.ebay.com. Visit this link for their listings; http://shop.ebay.com/?_from=R40&_trksid=p5197.m570.l1313&_nkw=night+vision+camera&_sacat=See-All-Categories.
thermal cameras or viewers
Usually, the only way to see a real ghost is to use a digital camera, a static night vision camera, or a thermal imaging camera. 99% of the time you can't see a real ghost with your eyes. Many say ghosts will never be seen as they do not exist.
Check out these guys they have Products include thermal imaging cameras, night vision, test & measurement and marine electronics...click on their link to get what you want (remove spaces and then copy and paste) htt p s: //yazing .com /deals /flir/Zolatheloction
Not exactly my specialty there, but I will say that night vision would probably pick up a camera, but it could easily be confused with other things like heating ducts.
Some stores that sell great night vision camera are the Kodak stores and also small mom and pop stores that specialize in selling camera equipment for professionals. They can get quite expensive.
Thermal goggles are sometimes known as heat vision goggles or night vision goggles. They are used by the military and emergency personnel to see things in the dark or through walls.