I think I have found the camera, it doesnt go the 100 feet but at that depth I dont think youd be able to see much anyway (without attachable light). I'm thinkin either
http://www.olympuscanada.com/cpg_sec...497&page=specs
or the based on continous speed
http://www.olympuscanada.com/cpg_sec...548&page=specs
Both can have attached lights to underwater cases for greater depths