Originally Posted by Thor Henning
I think a better Camera and separate housing is to prefer. But for some this Pentax camera will be just what they have wanted. F 3.3 is enough to take pictures under water, but not more than the 10 feet depth the camera is made for.
I definitely think a better camera (with a higher resolution lens) is preferable to the inexpensive ones, if you are into SERIOUS underwater photography. But that comes at a price... EXPENSIVE ( see this website for underwater cameras/housings http://pcworld.com/reviews/article/0,aid,118272,00.asp
). Low light conditions underwater and low quality lens contribute to extreme graininess in your pics. Underwater flash units are helpful...but unwieldy and again, Expensive.
Below pics taken with a disposable Fuji underwater camera. On the PLUS side with the disposables...good to about 50 feet depth and CHEAP, as well as very easy to use.