Sea & Sea MDX a7III SLR Underwater Housing


Available on backorder


Sea & Sea MDX a7III SLR Underwater Housing

The Sea & Sea MDX a7III SLR Underwater Housing offers superior quality and customer service available, along with a simple, easy to use and light weight underwater housing. TTL shooting capability plus mobile Buoyancy Pocket for accessories such as Battery Chargers. Comfortably manipulate the next generation mirrorless camera and make the ultimate underwater image yours. Housing for the Sony mirrorless α7III / α7RIII.

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The MDX a7III SLR Camera Housing Compatible with all the Sea & Sea DX (NX) ports series. Larger diameter lenses can be easily removed through the increased housing port diameter to enable battery exchange in camera body without removing lens.

Sea&Sea engineers have designed a unique Buoyancy Pocket*, which can also accommodate accessories such as a mobile battery charger**, without compromising the overall size of the housing. The availability of an optional battery charger has addressed battery life of the camera and allows shooting for extended periods without concern of camera power loss.

  • Port Lock
  • Pulling out the Focus/Zoom Dial
  • Controls have luminescence stickers
  • Sync Cord 2-pin Connector Option
  • Two sacrificial zinc diodes
  • Built-in leak sensor
  • Tripod screw mount
  • Equipped with under guard to protect from scratches.

The internal space also contributes to the reduction of the weight underwater. Combined with the lightweight camera body, we realized a phenomenal underwater weight of 700  grams***, eliminating the necessity to attach large floats.

Compatible with optical converter S1
Compatible with Sea&Sea “optical converter S1” which converts the strobe light emission signal of the camera to LED light and synchronizes with the Sea&Sea YS strobe. It is a high-performance converter that does not just emit simple light-emitting signals like other companies, but also performs TTL auto light control.

※ Sony original adapter “ADP – MAA” is required separately for connecting camera and optical converter.

Key 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.
  • Pulling out the Focus/Zoom Dial gives sufficient room inside the housing to easily accommodate larger diameter lenses.
  • 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 the housing.
  • All controls have luminescence stickers which glow in 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 0.66x, 0.8x can be used.
    ※Some vignetting occurs.When the VF180 1.2x is mounted on housing, the uper part of the camera’s viewfinder cannot be viewed due to vignetting.
  • Sync Cord 2-pin Connector enables use of conventional hardwired Sync cable (Manual mode only).
  • 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.
  • Equipped with under guard to protect from scrach.
    [Construction] Body: corrosion-resistant aluminum alloy (machined)
                        Grip: corrosion-resistant die-cast aluminum alloy
    [Depth rating] 100m / 330ft
    [Dimensions (WxHxD)] 328 x 188 x 131 mm / 12.9 x 7.4 x  5.2 inches
    [Weight] Approx. 2,700g / 95oz (Housing only)

Buy Sea & Sea Underwater Camera Housings, Strobes, Lenses and Accessories Online in Canada from Dan’s Dive Shop, a Top Stocking Sea & Sea Dealer.  Please Allow 2-4 weeks minimum.


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