The NA-D850 is the latest release of the underwater camera housing for the Nikon D850. It features a patented port-locking system that is trendsetting within the industry. A considerable portion of the development process was focused on rendering the housing user-friendly. As such, the diver can quickly reach the most essential control elements of the camera from the rubberised handles. In addition, keys and controls have been dimensioned generously so that they may be operated safely with gloves as well. Important keys are highlighted in colour and can thus be located faster underwater.