We all may have slightly different interests underwater, I am sure we all share a common bond of wanting to take great photographs underwater.
Modern technology has greatly changed our view of underwater photography. Cameras are much easier to use and housing manufacturers have given us a sometimes bewildering array of options.
Since underwater photography is often performed while scuba diving, it is important that the diver-photographer be sufficiently skilled so that it remains a reasonably safe activity. Good scuba technique also has an impact on the quality of images, since marine life is less likely to be scared away by a calm diver, and the environment is less likely to be damaged or disturbed. There is the possibility of encountering poor conditions, such as heavy currents, tidal flow, or poor visibility. Underwater photographers usually try to avoid these situations whenever possible. Underwater diving training providers provides courses to help improve a divers diving skills and underwater photography skills.