Luxurious, edgy design shows off the features of the Canon EOS 40D
 
Uses a lightweight and durable aluminum body that can withstand even the most severe shooting environments.

The aluminum material used in the MDX series housings realizes a body that is both lightweight and strong. Because we envisioned photographers’ harsh usage environments, the body was successfully brought to an even higher level of perfection through the implementation of anodized aluminum processing.

The all-new high-rigidity, high-durability, high-precision MDX series demonstrates the highest levels of performance under a variety of shooting conditions.

The included 6-pin wired connector accepts the optional TTL converter III for Canon.  The converter works with the YS-Series strobes to provide automatic TTL flash adjustment.
The converter requires the Sync Cord/N for connecting to the YS-250PRO strobe.
The MDX-40D housing comes from the factory with these bulkhead connectors: one type-N (2-pin wired) connector and one 6-pin (6-pin wired) connector.
To use two SEA&SEA YS-Series strobes with the factory-equipped bulkhead connectors, you must use the Dual Sync Cord/N.

Main features of the MDX-40D housing

• Every detail of the housing is precision CNC machined. Ergonomically designed for ease of use.
• Manufactured from solid block aluminum alloy with all edges carefully polished for safety.
• The housing is protected by a highly corrosion resistant anodized (black) coating. The coating provides the housing from environmental corrosion and abrasions.
• An optional TTL converter III for Canon enables automatic TTL strobe photography.
• Equipped with a 0.66x pick-up viewfinder standard. An interchangeable 0.8x viewfinder (optional) is also available.
• Comes standard with two bulkhead connectors: one type-N connector (2-pin wired for manual) and one 6-pin wired connector (for dedicated TTL).
• Compatible with the Shutter-activated Focus Light (optional, factory modification is required).
• Both the main dial and quick control dial are operable while holding the hand grips due to advanced ergonomic design.
• Most EOS 40D camera functions are accessible and can be operated underwater with ease.
• The quick shoe makes the camera easy to install and remove from the housing.
• The locking latches prevent accidental housing opening.
• A built-in leak sensor immediately alerts you to any water leakage. 

MDX-40D Specifications

• Construction: Body: corrosion-resistant aluminum alloy (machined) / anodized body, Grip: corrosion-resistant die-cast aluminum alloy
• Depth rating: 60m / 200ft
• Dimensions (WxHxD): 317x168x137mm / 12.7x6.7x5.5inch
• Weight: Approx. 2,700g / 94.5oz (Housing only)

Port is sold separately.