I carry a Panasonic Lumix as a backup camera. Without a housing it is rated to 48 feet, but I've had it down to 100 feet. It's useful having a waterproof point-n-shoot on the boat deck. I've used it on dives where there were both macro and wide angle subjects expected: my SLR system setup for macro, and the Lumix in my BCD pocket for the occasional wide angle shot. It can't get me closeups of moving subjects because of shutter lag, and the onboard flash produces backscatter sometimes, but it is surprisingly capable. When I flooded my SLR on day 11 of 14, I was able to take photos the last three days with the point-n-shoot.