Nauticam FX5 Housing for Sony FX5 Full frame Cinema Camera

Now accepting preorders. Shipping mid-September 2026.

📷 The Sony FX5

The Sony FX5 brings VENICE-class capability into a body barely larger than the FX3. A newly developed full-frame, fully-stacked Exmor RS CMOS sensor paired with the BIONZ XR2 processing engine delivers 15+ stops of dynamic range in S-Log3 across three base ISOs, and a Dual Gain Shooting mode — a first for the FX series — that holds shadow detail without adding noise. For the first time in the FX line, the camera records 3:2 Open Gate using the full sensor area and writes Sony’s 16-bit X-OCN RAW internally, with no external recorder in the loop. For underwater cinematographers, that means the entire acquisition chain now fits inside a housing.

⭐ Camera Key Features

• 🎞️ Full-frame, fully-stacked Exmor RS CMOS sensor with BIONZ XR2 engine and a dedicated AI processing unit
• 🌈 15+ stops of dynamic range in S-Log3, with base ISOs of 800, 4000 and 12800
• ⚙️ Dual Gain Shooting mode, a first for the FX series
• 🖼️ 3:2 Open Gate full-pixel readout, plus 17:9, 16:9 and Super 35mm scan modes
• 🎥 Internal 16-bit X-OCN RAW recording, including the new X-OCN C1 and C2 codecs
• 📹 5K up to 60fps, 4K up to 120fps, FHD up to 240fps
• 🎯 AI human pose estimation autofocus with Real-time Tracking
• 🩻 5-axis optical in-body stabilization, with roll correction range roughly double that of the FX3

🏠 The Nauticam NA-FX5

The NA-FX5 carries forward the control layout, port system and monitoring options proven on the NA-FX3, including Nauticam’s patented port locking lever — unveiled on the very first Nauticam DSLR housing in 2009 and a signature of the brand ever since. No twisting or threading action is required to mount a port; it locks securely in place with a single motion. Machined from solid aluminium block and hard-anodised, the housing is depth rated to 100m. Full specifications, port chart and accessory list will be published ahead of shipping.

🎛️ Mission Control

Every control a cinematographer reaches for mid-take is placed within reach of the ergonomic handles, which feature stainless steel stiffening brackets to reduce unwanted movement even when the rig is loaded with large video lights. Record, ISO, iris, white balance and menu navigation are all accessible without breaking grip mid-take.

🔬 Premium Professional Optics

Water is an unforgiving optical element, and correcting for it is what Nauticam has spent more than a decade engineering. Nauticam water-contact optics treat the water itself as part of the optical formula rather than something to shoot through, delivering wide fields of view with corner-to-corner sharpness and close-focus performance that a full-frame sensor recording 5K Open Gate will genuinely resolve. The NA-FX5 uses the N100 Port System, providing access to Nauticam’s full range of professional glass and acrylic dome ports, macro ports, and premium water-contact optics including the WACP series, WWL wide-angle wet lenses, the MFO, and the SMC and CMC macro converters.

Sony builds superb wide glass, and a lens like the FE 16-35mm f/2.8 GM II performs well behind a Nauticam glass dome port — though some loss of edge sharpness and contrast is an unavoidable limitation of any dome. Nauticam water contact optics maximise sharpness corner to corner while improving contrast and autofocus performance, an advantage that matters most on the larger frame area the FX5 uses in Open Gate, where the extreme corners of the sensor are in play on every frame.

Recommended Optical Combinations:

• 🌊 Sony FE 24-50mm f/2.8 G with the WACP-1 — the highest-resolving fast zoom available on this format, usable wide open at a constant f/2.8, and drives the FX5’s autofocus and subject tracking exceptionally well
• 🎒 Sony FE 28-60mm f/4-5.6 with the WACP-C — the same water-corrected optical approach in a noticeably more compact, lighter package for travelling rigs
• 🔄 Sony FE 28-60mm f/4-5.6 with the WWL-1B — the most compact water-corrected solution possible, removable in the water so a single dive can cover wide reef scenes and mid-range subjects without a port change
• 🔍 Sony FE 100mm f/2.8 Macro GM paired with the MFO-1 (improved image quality and AF speed), the MFO-3 (wider field of view for fish portraits) or the SMC-3 (highest magnification in the range) — all mount in the water on a flip holder, so a single dive can cover a fish portrait, a nudibranch and a near-invisible subject without changing a port

🔌 HDMI Output

An optional HDMI bulkhead and internal cable route the camera’s HDMI signal to an external monitor housing, for accurate framing, focus and exposure confirmation on a large display.

🛡️ Vacuum Check & Leak Detection

Nauticam’s moisture alarm is built in, and the optional vacuum valve allows the housing to be pressure-checked and monitored before every dive. The system is temperature-compensated, eliminating false alarms as the camera warms or as the rig moves between air and water temperatures.

This is a preorder item. Nauticam is finalising full specifications, the port chart and the accessory list ahead of a mid-September 2026 ship date — the box contents and recommended accessory list aren’t published yet. Preorder units ship in the order received once the housing arrives. Contact us for availability and to reserve one.