Built upon numerous years of profound engineering experience, Sea & Sea’s new MDX-5DMKIII Version 2 is designed to utilize all features of the Canon 5D Mark III EOS Digital SLR Camera with precision and ease.

The MDX-5DMKIII Version 2 underwater camera housing utilizes all features of the Canon EOS 5D Mark III Digital SLR Camera with several new improvements. Constructed from black galvanized corrosion-resistant aluminum alloy, the MDX-5DMKIII Ver.2 is sturdy, durable, and protective. Two sacrificial zinc diodes are attached to the front and rear of the case for added protection against electrolysis damage.

SEA&SEA’s attentiveness to detail make this housing unique, and virtually all functions of the camera can be utilized underwater.  The newly designed ergonomic controls for the MDX-5DMKIII Ver.2 were enhanced and fashioned with the underwater photographer’s dexterity in mind. The housing is equipped with a movable focus/zoom gear allowing a lens with a big diameter to be mounted in the housing easily. The shutter sensitivity can be adjusted by changing the location of the adjustment plate.

The housing is also compatible with SEA&SEA’s signature Internal Optical YS-Converter. SEA&SEA’s optional leak sensor comes installed in this housing, which provides an alert upon any water entry. The housing has a depth rating of 100m/330ft, so both recreational and technical divers can safely use this housing.



The MDX-5DMKIII Ver.2 is compatible with SEA&SEA’s signature Internal Optical YS-Converter, which offers the functionality of the Sync Cord system while concurrently offering the benefits of a Fiber Optic system.  It converts the camera’s TTL signal into a light signal.  This particular design reduces possible leak points by erasing the need to use threaded bulkheads while allowing for rapid fire and a reduced recycle time by linking directly to the camera through the hot shoe.

Equipped with two fiber-optic sockets, the MDX-5DMKIII Ver.2 is compatible with SEA&SEA’s newly fine-tuned and restructured Fiber Optic Cable II for easy ultimate lighting.  Made of 613 individual fiber cores, the Fiber Optic Cable II decreases the chance of light attenuation, resulting in minimal transmission loss.

Renowned for high-tech underwater lighting, SEA&SEA strobes are the accessory for the proper underwater imaging execution. Through fiber-optic connection, the MDX-5DMKIII Ver.2 is compatible with the YS-D1YS-01, and YS-03 strobes.  Links regarding strobe compatibility and comparison have been added on the newly updated SEA&SEA website to help further SEA&SEA strobe awareness.

Fastening strobes to the MDX-5DMKIII Ver.2  is effortless with the SEA&SEA Sea Arm 8 collection.  Designed using the latest structural analysis software, the Sea Arm 8 was systematically machined from a solid block of aluminum, providing robust lightweight durability and security.  Ball clamps allow for easy manipulation and maneuverability, while keeping SEA&SEA’s standard of structural reliability.

The MDX-5DMKIII Ver.2 underwater housing is compatible with both optional viewfinders that SEA&SEA has to offer: VF45 Prism viewfinder and VF180 1.2x. Covering the entire field of view, the VF45 enhances magnification by 1.2x and enables subtle framing and focusing of subjects.  The eyepiece rotates 360° in increments of 90° to provide the ideal camera position in either landscape or portrait. The 45-degree prism viewfinder is ideal for all conditions, but especially suited for macro photography when the camera is often positioned lower than the photographer. The magnification ratio is 1.2x without sacrificing the field of view. The VF180 1.2x allows for easy image composition.  The eight element six group optical lenses help to reproduce the natural colors captured in images.  To prevent condensation and fogging, VF180 1.2x is filled with nitrogen gas.  This viewfinder is an excellent tool for those pelagic animal shots.

SEA&SEA’s sturdy mechanical design for the MDX-5DMKIII Ver.2 underwater camera housing continues to offer exceptional creations to the thriving community of underwater imaging.

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Founded in 1972, SEA&SEA is the leading manufacturer of advanced underwater imaging technology. With a devotion to innovation, our ingenuity has provided the industry with many original breakthroughs. Providing a complete line of digital imaging products that have dominated the professional and recreational markets, each one demonstrates our standard for precision. SEA&SEA offers a variety of housings, strobes and accessories manufactured with the latest technology and ergonomic considerations. Continuously striving for advancement, SEA&SEA will continue to sculpt the future of underwater imaging. SEA&SEA products are distributed within the United States by TUSA,
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