Anybody ever experienced using the GoPro helmet cam in a cave? For the most part the reviews for it are really good but I have yet to find any confirmation that it is capable of filming in low light conditions. Obviously the solution is to have more lighting in the cave if the footage is coming out too dark, but different video cameras need more light than others so I'd like to have one that won't require more than average.
Here is a link to the camera.
http://www.google.com/products/catalog?hl=en&q=helmet+cam&cid=13907689374246708523&ei=gS6lTM26PKTaxAWdjI2jBw&sa=title&ved=0CCcQ8wIwAjgA#p