Is there anyone here that takes underwater pictures? I've always wanted to try it out. The colorful fish and corals are great subjects for pictures. What camera do you use?

I have not really tried doing this yet. I have friends who are certified divers and they do have good collections of underwater photos. I love the quality of photos in their collection. I also hope to try this one day.

I wonder how much harder or different it is too take pictures underwater and what other types of equipment is needed.