Thanks Jack I got the Ys-01's so I will be able to test them out in Belize in two weeks. I have a Nikon D200 that I use topside for sport pictures but there is something about manual underwater that makes me anxious. It might be because I am usually diving with my two kids so I can't always spend too much time composing my pictures. My next two trips will be kid free so I am going to try and I am already reading The Underwater Photographer by Martin Edge.