First a look at some dive data and then some photos of my dive camera (Nikon D200) and housing (Subal).

Linda downloaded data from our dive computers (alas - I have a Mac and no driver available). There was a problem downloading Linda's data but I looked at my dive data. Since we pretty much stayed together on our dives and our air consumption was comparable our dive profiles are similar. The red curve is for a 89 min dive we did in relatively shallow waters (July 22) and the yellow curve is when we dived the Hilma Hooker wreck - the top of which is at about 60 ft. Our average dive time for the trip was about 70 min per dive. For the two dives listed the tank pressure (in pounds per square inch) is given for the start or and end of the dive.

Above left: I purchased a Nikon D200 DSLR in 2008. The camera is shown here with a 12-24mm zoom lens. To work with the Subal housing, a mounting plate is screwed to the camera bottom, a gear ring is placed around the lens to change focal length and a +4 diopter is attached to the lens. Above right: The Subal housing is shown without the back plate. I remove and clean the o-ring after each dive.

Left: Nikon D200 in place in the Subal. The small sponge is to prevent the camera battery door from opening (I learned my lesson). Right: The Subal back plate attached. The Subal buttons mechanically couple to the corresponding buttons on the D200

Left: The top of the Subal. The large knob on the top right side is the On-Off switch and the button just to the right of the top and at the front is the shutter release. Right: The front of the housing showing the lens port. Also shown is the tether to the buoyancy control jacket, the dive computer and a white board for white balance adjust. I do this everytime I change depth by 10 feet or so.