The Aquatica AD600 is a new underwater housing for the Nikon D600 digial SLR camera. Along with the comfortable ergonomics usually associated with Aquatica housings, the AD600 also incorporates a number of refinements. Among them, it offers access direct to the Fn button. This is done via an easy to reach and unique design push button that is conveniently located on the rear of the housing. The housing also features an internal flash up/flash down capability, a quick access ISO lever that is thumb actuated and a total of three access holes are provided to accept various accessories. Depth rated to 90m, the Aquatica AD600 underwater housing can be yours for $3,199.