Overview & Features
MDX-αU Housing for Sony a9II
Universal compatibility with Sony Alpha series. The future-oriented mirrorless SLR compatible housing is now fully loaded.
Revised ergonomic design, improved safety features and eye-catching exterior. The new MDX-αU series housings are now upgraded with more standard features to ensure better handling and greater protection for your camera.
Universal design for the future, the back panel is designed to be large.
The back acrylic panel is more than twice as large as before to improve visibility of the monitor and reduce the underwater weight.
Furthermore, it is a sustainable design that can be used with new cameras in the future with minimal parts replacement.
Newly designed fiber-optic cable cover
Newly designed fiber-optic cable cover included. Prevents optical cable terminals from falling out and smartly protects light-emitting panels and cable terminals. Includes a strap to prevent loss of the cover.
Leak Alarm Unit as standard equipment
The Leak Alarm Unit, which was previously available as an option, is now included as standard equipment, CR2032 lithium battery included.
It is effective not only for early detection of underwater flooding accidents, but also for protection of equipment by checking its waterproof performance before entry.
Strobe Synchro System
Three optional strobe connection methods are available.
1. Optical TTL connection [Product No.50151] Optical YS Converter S2Compatible with SEA&SEA “Optical YS 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, but also performs TTL auto light control.
* The Sony original adapter "ADP-MAA" is no longer required for connection to the camera.
2. Optical manual connection [Product No.50146] Manual flash trigger
For those who do not need TTL photography, the fiber-optic cable connection enables manual firing of the YS strobe.
3. Electrical connection [Product No.50147] Strobe connector/N, [Product No.50122] Optional Sync Cord 2-pin Connector
YS strobes can be electrically connected with a sync cord.
Full range of standard equipment
- Grip Plus handle made of silicone material.
- Robust yet secure fit to hold the housing in place.
- Lighting can be deployed as desired from the SA8 fixed ball base.
- Pre-equipped with lanyard hooks for convenient transportation.
Functional Limitations and Enhancement Customization Kit
Common to all modelsUp/down/left/right buttons on the multi selector cannot be used.
Use the up/down/left/right buttons on the control wheel instead.
The up/down/left/right buttons on the control wheel cannot be used to move the focus point.
Focus point can be moved with the front and rear dials using the camera's dial customization function.
α1/α9II cameraDrive mode/focus mode dials are not available as standard.
It can be supported by using the optional kit.
If you want to change the drive mode etc. without modification, you can temporarily use it by registering the camera's custom shooting setting in advance and calling up the function, but it is not a perfect substitute.
α7IV Camera
The shooting mode lever cannot be used.
This can be handled by using an optional kit.
S&Q cannot be used.
[Product No.50148] α1 customize kit for MDX-αU
Compatible with drive mode dial/focus mode switching lever.
[Product No.50149] α9II Customize Kit for MDX-αU
Compatible with drive mode dial and focus mode selection lever.
[Product No.50150] α7IV Customize Kit for MDX-αU
Compatible with shooting mode selection lever.
*The α7IV customize kit cannot be used with an electrically connected strobe sync system.
Other 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.
- 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. When the VF180 1.2x is mounted on housing, the uper part of the camera's viewfinder cannot be viewed due to vignetting.
- Equipped with two sacrificial zinc anodes (one on the front case and the other on the rear) to prevent electrolysis damage.
- Tripod screw mount is located on the centre underside of the housing.
- Equipped with under guard to protect from scrach.
