Nauticam NA-FX5 Underwater Housing for Sony FX5 Full-frame Cinema Line Camera

Nauticam NA-FX5 Underwater Housing for the Sony FX5

The Sony FX5 brings flagship Cinema Line performance to a compact full-frame body, and the Nauticam NA-FX5 is the housing built to take it underwater. Sony's fully stacked full-frame Exmor RS CMOS sensor, BIONZ XR2 processor, dedicated AI unit, and internal 16-bit X-OCN RAW recording mean the FX5 can capture a complete professional workflow with no external recorder — and Nauticam's rugged, ergonomically refined housing lets you carry that capability to depth. As an authorized Nauticam dealer, Reef Photo & Video configures every NA-FX5 system to your lenses and monitoring needs, backs it with expert setup guidance, and supports it through our in-house service department. This is a brand-new cinema housing release, so contact us for the latest configuration details and availability.

Key Features of the Nauticam NA-FX5

• Mission Control ergonomics: every control a cinematographer reaches for mid-take — Record, ISO, iris, white balance, and menu navigation — sits within reach of the handles so you never break grip.
• Dedicated cinema controls: control dials for Iris, ISO, and Shutter Speed fall under the right handle, alongside a dedicated REC button and a FOCUS MAG lever.
• Stainless-steel stiffening brackets: keep the handles steady even when the rig is loaded with large video lights or other accessories.
• Vacuum check & leak detection: Nauticam's moisture alarm is built in as standard equipment; paired with the optional vacuum valve, the housing can be pressure-checked and monitored before every dive.
• Rugged construction: machined from a solid aluminum block and hard anodized, depth rated to 100m.

Lens & Port Compatibility

The NA-FX5 is built around the N100 Port System shared across Nauticam's full-frame Sony mirrorless housings, so existing Sony shooters can cross over lenses and optics seamlessly. The N100 system provides optical-glass and flat port solutions for a wide range of lenses, and unlocks Nauticam's Water Contact Optics for the highest underwater image quality. 

Monitoring & Cinema Workflow

The NA-FX5 features an M24 bulkhead supporting the Nauticam HDMI 2.0/1.4 cable system, which routes the camera's HDMI signal to a supported external monitor or recorder housing for confident critical focus and exposure on longer takes. An M16 bulkhead is dedicated for the 26325 USB-C Charging Bulkhead, and an M14 bulkhead on the rear cover accepts the optional M14 Vacuum Valve II. Not sure which monitor or cable setup fits your workflow? Reach out to our team and we'll spec the full monitoring chain for you.

Premium Water-Contact Optics

The greatest advantage of the Nauticam system is direct access to its water-contact optics, which correct the image where the water meets the glass for exceptional sharpness across the frame. For wide angle the WWL-1B provides a wide 130° field of view, or step up to the WACP-1B and WACP-2 conversion ports for reference-grade corner-to-corner performance. For macro, add the Nauticam MFO-1 for improved edge-to-edge sharpness, and improved autofocus, or the MFO-3 for a wider field of view, improved image quality, and more versatility on your dive. Finally for supermacro fans, Nauticam's SMC-3 or SMC-2 offer remarkable image quality for the ocean's smaller critters.