This Aquatica housing for the Nikon D40 and D40X has a cast aluminum body that is anodized and machined to exacting specifications. It operates safely to a depth of 200' (60 m).
The lens port has a positive bayonet mounting system, which leaves no doubt that your port is securely in place and watertight. The bayonet system offers fast access to lenses for rapid changing. There is also a lens release button on the front of the housing to facilitate easy lens changes. The housing allows use of lenses ranging from Fisheye to the 200mm Macro.
The Aquatica D40X housing uses a viewfinder that delivers a big and bright image and full frame viewing to your eye. LCD information in the camera's viewfinder is easily referenced while shooting, and chromatic aberrations have been significantly reduced for sharp focusing and exact composition.
Note: Requires lens port
Also Note: Most zoom lenses require Close-Up #4 diopter filter to correct focus distance.