alright i got a pv-gs500 camera
43mm lens, im almost positive, right??
so it has a 43mm lens. the fisheye we bought says it fits threads 37mm and smaller
does that mean we need a step down ring, this one?
http://www.amazon.com/Bower-AD4337-Step-Down-Adapter-Ring/dp/B000J45FXE/ref=sr_1_1?ie=UTF8&s=electronics&qid=1195161331&sr=1-1