Thanks. So far, I only have 2 control rods matched up in the housing: Shutter release and shutter speed, so I have to preset the aperature and ISO. I set it up to match the output of my flash (another $9 Ikelite underwater flash housing E-bay special). It works, but is fairly limited (most of the pictures are all taken from the same distance). Also, because of the smaller size of the digital sensor, it's hard to find a cheap lens with a wide angle of view. I'm using a Zenitar full-frame fisheye ($120) which gives you 180-degree coverage on a full-frame sensor, but on the cropped-frame digital sensor is only around a 20mm-equivalent. I miss my old film SLR with it's 17mm lens (much wider coverage). -Although I can't complain about the practically unlimited number of pictures I can take on a dive, compared to rationing my clicking like I did with film.