Nauticam NA-A7RVI underwater housing for Sony A7R VI

Why the Sony A7R VI is exceptionally suited for underwater photography and videography

Featuring a 66.8MP stacked full-frame sensor, the camera delivers outstanding detail reproduction. Its advanced AI autofocus system provides extremely accurate tracking for humans, animals, birds, and vehicles, with up to 16 stops of dynamic range—ideal underwater to retain as much detail as possible in challenging lighting conditions.

For video, the camera supports 8K recording at 30p and 4K at 120p, making it highly suitable for underwater videography. Enhanced in-body image stabilization, a robust weather-sealed magnesium alloy body, and a high-resolution EVF ensure reliable performance in demanding professional environments.

Key specifications:

• 66.8MP full-frame stacked Exmor RS sensor
• BIONZ XR2 processor with dedicated AI unit
• Up to 30 fps continuous shooting
• Up to 16 stops dynamic range
• AI Real-time Recognition AF+ (human, animal, bird, vehicle, etc.)
• 8K 30p and 4K 120p video
• Up to 8.5 stops IBIS

The Nauticam NA-A7RVI Housing

The Nauticam NA-A7RVI underwater housing provides fingertip access to all essential camera controls within a robust and reliable aluminum underwater enclosure. Ergonomic access to camera operation is one of Nauticam’s defining strengths, and the NA-A7RVI continues this tradition. Essential camera settings can be adjusted directly from the handles, keeping all key controls within easy reach.

The NA-A7RVI housing inherits the core design elements of Nauticam’s professional DSLR range and integrates them into a more compact form factor. A patented port locking lever allows lens changes to be completed within seconds. Opening the housing for quick battery and media changes is fast and simple thanks to its secure locking system.

Unmatched Ergonomics

Never miss a shot due to searching for a button or dial. Wherever a control is located on the camera, Nauticam engineers replicate it inside the housing exactly where it is needed. Critical dials and buttons are positioned within easy reach of the reinforced ergonomic handgrips. On top of the housing, a dedicated lever enables fast switching between Still, Movie, and S&Q (VFR Video) modes. A dual thumb lever on the right handle controls REC and AF-ON, while a single lever on the left handle operates Playback.

Camera Compatibility

The NA-A7RVI housing is only compatible with the Sony a7R VI mirrorless camera.

Lens Compatibility

Built around the N100 port system for Sony E-mount, the NA-A7RVI supports a wide range of native lenses using selected optical glass and acrylic ports. When paired with an E-mount to EF-mount lens adapter and an N100 to N120 adapter, the system can be used with Canon EF-mount lenses and port systems as well.

To select the right extensions and ports you can refer to the following port chart:
Nauticam N100 Sony port chart  

For super macro we recommend the Sony 90mm macro lens or the latest Sony 100mm macro lens combined with a SMC-3 or for very small objects the SMC-2.

If you want to shoot wide-angle, instead of choosing a wide-angle lens behind a dome port you can also consider using the kitlens 28-60mm combined with a WACP-C/1/2 for better corner sharpness.

Versatile shooting is also possible by using the 28-60mm behind a flatport with the 83250 attached ( bajonet mount ). On this set-up you can add the WWL-1B and the CMC-1 and CMC-2.
To convert the CMC lenses to the bajonet system you would need the 83214.

If you have any questions regarding the port chart don't feel bothered to contact us!

Premium Professional- and Wet Lens Optics

The NA-A7RVI also supports Nauticam’s advanced Water Contact optics, including the WACP-C, WACP-1B, WACP-2 and WWL-1B, delivering an ultra-wide field of view up to 130°, full zoom functionality, and near-zero minimum focus distance with compatible lenses. For macro photography, the SMC-1 and SMC-2 super macro converters deliver extreme magnification up to 4x when used with the Sony 90mm macro lens.

HDMI 2.0 Compatibility

A large bore M24 bulkhead is located at the front of the housing for use with HDMI 2.0 or HDMI 1.4 (with a step-down adapter to M16) external monitors and recorders.  An additional M10 threaded mounting position near the front center of the housing also makes using an external monitor even easier.  

Vacuum Monitoring and Leak Detection

The housing comes pre-installed with electronics for Nauticam’s vacuum monitoring and leak detection system, requiring only the optional M14 vacuum valve ( 25624 ). This system continuously monitors the housing’s waterproof integrity and dive safety status. A color-coded LED indicator shows whether vacuum pressure is stable or if there is a leak.

Leak detection is integrated in the same circuit, providing both audible and visual alerts in case of water ingress. The system is temperature compensated, preventing false alarms caused by environmental temperature changes or heat generated by the camera during operation.

Flash Triggering

External strobes can be triggered via integrated fiber-optic ports using the optional Mini Flash Trigger for Sony ( 26302 ) or by the new HSS TTL trigger ( 26602 ). Additional third-party solutions from UWTechnics and Turtle are available as well. Electronic triggering is also available via optional Nikonos or Ikelite-style bulkhead connections.