Sea and Sea MDX-D850 Underwater Housing for Nikon D850

The BEST housing for Nikon D850

Its superior ergonomic design and standout range of optional accessories help you capture those optimal moments with the best image quality.

Much lighter than previous housings.
Using modern precision machining, the dimensions of the housing are similar to those of the camera. In addition, the revised internal design has also helped reduce weight. The MDX-D850 is approximately 11% (350g/12.3oz) lighter than the previous MDX-D810 housing.

Various controls can be operated whilst holding the grips.
Frequently used Main and Sub-Command dials are now located directly on the right side of the housing. ISO, REC and other camera functions can be operated by external levers whilst holding the grips. With the AF lock function, you can fix the focus point as required.

Optical YS Converter/N1 can be built into the housing
Optical YS Converter/N1 can be built into the housing
Compatible with Optical YS Converter/N1 for MDX housing which converts the camera’s hot-shoe TTL signal to a light signal. Both TTL and manual strobe modes can be used and controlled from the housing using a Fiber-Optic Cable II.
* Fiber-Optic Cable ll is required when using the Optical YS Converter.
*Serial numbers 124000274 and above are compatible with the Nikon D850. Serial numbers below 124000274 are not compatible. New firmware and/or conversion of the converter will be required.

All the dials have a spring (damper) to prevent slip of the controls even if the dimensions of the cameras are slightly different or also if gears or other parts wear out to some extent.

MDX-D850 Underwater Housing Features

• The Port Lock prevents the port from turning or loosening, and the Port Lock lever is specifically located to avoid being unlocked accidentally.
• The housing is equipped with a lens-lock release button which makes it possible to change lenses easily, without opening the housing.
• The camera’s diopter adjustment dial can be operated from outside the housing. This feature is useful when two or more people with different eyesight use housing.
• Pulling out the Focus/Zoom Dial gives sufficient room inside the housing to comfortably accommodate larger diameter lenses.
• All controls have luminescence stickers which glow in a dark environment. 
• Equipped with the Optical Viewfinder 0.5x as standard. Other optional viewfinders such as the VF180 1.2x, VF45 1.2x and Optical Viewfinder 0.8x can be used.
• *When the VF180 1.2x is mounted on the MDX-D850 housing, the lower part of the camera’s viewfinder (where the shooting data is displayed) cannot be viewed due to vignetting. 
• Sync Cord 2-pin Connector enables the use of conventional hardwired Sync cable (Manual mode only).
• The accessory port allows the use of Leak Sentinel (vacuum sensor).
• Equipped with two sacrificial zinc diodes (one on the front case and the other on the rear) to prevent electrolysis damage.
• Built-in leak sensor immediately alerts you to water ingress.
• Tripod screw mount is located on the centre underside of the housing.