oh i forgot to mention it will really only fit big mount cams, like the vx2000 vx1000 and gl1, but for any of you that have a home cam and want a really good fisheye, century makes what they call Ultra Compact .3x fisheye, which skateboard filmers refer to as the baby death.  it is almost as good as the death, about 20 degrees less on the field of view, but its only 300 bucks, good value
Skiing In New Jersey Sucks-Trust Me