Nauticam Canon C400 Underwater Housing
The Nauticam NA-C400 underwater housing is a professional-grade enclosure designed for the Canon EOS C400 cinema camera. As part of the Nauticam cinema housing lineup, it enables full access to camera controls and supports underwater operation at depths of up to 80 meters. The housing is constructed from hard-anodized aluminum alloy and supports a modular port system, camera-specific mounting features, and advanced connectivity options. It is compatible with the N120 Nauticam port system, which is supported by detailed Nauticam port charts for configuring optics, extension rings, and focus gears.
This Nauticam housing offers mechanical and electronic access to all key camera functions required by underwater cinematographers. These include lens adjustments, ISO, aperture, shutter, white balance, recording triggers, and more—controlled through ergonomic levers, knobs, and electronic control boards integrated into the handle grips. The system includes an internal mounting bracket to support the Canon LM-V2 LCD monitor, allowing real-time visual feedback during underwater operation via a rear-facing window.
The design of this Nauticam underwater housing takes into account both the physical dimensions of the Canon C400 body and the power options available with Canon’s BP-A batteries. It accommodates both the camera and accessories like the top handle and LCD monitor, with ample internal space for cable routing, video output, and bulkhead expansion. The housing includes multiple bulkhead ports, including M16, M10, and M28 sizes, for use with HDMI 2.0, SDI, vacuum valves, and accessory integration.
In terms of power and monitoring, the housing includes output options for both HDMI 2.0 and SDI via dedicated bulkheads. This facilitates connection to external monitors or recorders for topside or subsea use. The main control layout has been organized for intuitive use with drysuit gloves or bare hands, and the internal space is designed to avoid cable obstruction or camera misalignment.
Nauticam NA-C400 underwater housing Specifications & Features
- Housing dimensions: 232 mm (W) × 194 mm (H) × 298 mm (D)
- Weight in air: 6.64 kg (including handles and skids)
- Buoyancy: negative 1 kg in water with camera, LCD monitor, and BP‑A60 battery pack
- Depth rating: 80 m (some retailers list 100 m, but manufacturer spec is 80 m)
- Port system: N120 (shared with other Nauticam cinema housings)
- Accessory bulkheads: front 2× M10; middle 1× M16 and 1× M28; rear 4× M16
NA-C400 Underwater Housing Controls and Connectivity
- Mechanical controls: Power On/Off, Zoom, Focus, Lens Release via ergonomic knobs
- Electronic (remote) controls: exposure, ISO ±, IRIS ±, Rec, Fn3/4, MENU/REC Review via left and right handle boards and main board
- Internal support and mounting bracket for the Canon C400’s detachable LCD monitor, viewed through a shaded rear window
- Built‑in HDMI 2.0/1.4 and SDI outputs via M‑series bulkheads for external monitoring or recorder connectivity
NA-C400 Materials, Build, and Safety
- Aircraft‑grade aluminum construction for durability and manageable weight
- Pre‑installed vacuum valve and leak detection system to alert operator in the event of seal compromise
Key Features of the NA-C400 Underwater Housing:
Patented Port Locking System
The locking lever has been a signature of Nauticam. No twisting or threading action is required to mount a port, and it locks securely in place with this lever.
Housing Locking Latches
Easy use housing closure system, requiring very little hand strength to operate, secures the housing back in place. The latches are safely locked to prevent accidental opening, but are easy to open when needed for a quick battery or memory card change.
HDMI Output
The Nauticam Sony A7S III Underwater Housing supports HDMI 2.0 connection for external monitor
Mission Control
Nauticam housings have been designed to have top-notch ergonomics. Essential shooting controls are very accessible even while holding the housing grips.
NA-C400 LCD Monitor Support
The C400 features a detachable LCD screen that can be easily integrated into the NA-C400. The LCD monitor is supported inside the housing and is mounted at the rear of the camera with a supplied bracket that allows it to be easily viewed underwater through the shaded rear window making for a streamlined filming solution.
NA-C400 HMDI/SDI
The NA-C400 supports Nauticam's optional HDMI 2.0 and 1.4 system that can accommodate external monitors or recorders in Nauticam housings. SDI output is also available for either surface monitoring or supported monitors. The NA-C400 has 1 M28 and 5 M16 bulkheads to accommodate a variety of configurations to suit mounted or remote setups.
NA-C400 Battery
The NA-C400 can accommodate either the BP-A30N or BP-A60N batteries or a combination of the BP-A30N and an FXLION NANO THREE 150Wh Micro V-Mount battery for extended runtimes.
Canon C400 Cinema Camera
In the ever-evolving landscape of filmmaking and content creation, the Canon EOS C400 cinema camera stands as a testament to the brand's unwavering commitment to innovation. This powerhouse of a camera, with its back-illuminated stacked CMOS sensor and native RF-mount, is poised to redefine the standards of cinematic excellence. Designed with the demands of the film and live production markets in mind, the EOS C400 promises to deliver stunning imagery, unparalleled versatility, and a host of cutting-edge features that will captivate seasoned professionals and aspiring creators alike.
Sensor Technology: Elevating Image Quality: At the heart of the Canon EOS C400 lies a newly developed 6K full-frame, back-illuminated CMOS sensor. This revolutionary sensor design not only enhances the camera's low-light performance but also ushers in a new era of image quality. With triple-base ISO settings of 800, 3200, and an astounding 12,800, the EOS C400 is capable of delivering breathtaking visuals even in the most challenging lighting conditions.Featured Specifications:
- Full Frame Back-Side Illuminated (BSI) CMOS sensor
- RGB primary color filter (Bayer array)
- Full Frame / Super 35mm (Crop) / Super 16mm (Crop)
- DIGIC DV 7 Image Processor
- Approx. 26.67 megapixels (6202 x 4300)
- 16 stops of DR (claimed)
- 4 Base ISO Settings
- 5-axis sensor stabilization
- Cinema RAW Lite (Internal Recording)
- XF-HEVC S (H.265), XF-AVC S (H.264), XAVC Long GOP
- 4:2:2 10-bit
- 4K 120p (S35 sensor crop), 4.3K 100p (S35 sensor crop)
- RF mount (RF to PL adapter is also available)
- Dual Pixel CMOS AF II with Touch AF and Face Detection AF
- Internal ND filters (clear, 2, 4, 6, 8, 10 stop – 8 & 10 with extension)
- 2x Mini XLR
- 12G-SDI, 3G-SDI
- 1x CFExpress Type B slot
- 1x SD card slot
- Virtual Production ready
Related Underwater Gear Categories:
- Nauticam Housings, Ports and Optics
- Underwater Strobes and Flash
- Underwater Photo Gear
- Underwater Camera Rental
Recommended Video Lights:
- Weefine Video light Solar Flare 13000
- Weefine Video light Solar Flare 25000
- Kraken Sports Hydra 18,000 Video Light
- Keldan Video 8X 15000 Lumens
- Keldan Video 8XR 18,000 Lumen Light
- Light & Motion Sola X Underwater Video Light (20000lm)
- Big Blue VL20000PB-RC 20,000 Video Light
- NA-C400 Housing with vacuum valve pre-installed
- Housing Cap
- 2x Handles with mounting balls and 2x handle brackets
- Panasonic CR-2450 Battery (pre-installed for moisture alarm)
- Spare main O-ring, O-ring remover and lubricant
- Set of Allen Keys
- Housing skids
- Monitor Shade
- Safety box
What is the Nauticam C400 housing rated to?
It is rated for underwater use to a maximum depth of 80 meters, per Nauticam’s official specification.
How do I select the correct ports using the Nauticam port chart?
Consult the Nauticam port charts for the N120 port system. Match your lens focal length and desired optics (flat or dome) to the chart to choose the correct port.
Can I control ISO and iris underwater?
Yes. The NA‑C400 provides electronic remote-style controls for ISO ±, iris ±, record trigger, and menu navigation via handle-mounted buttons.
Is the housing compatible with other Canon RF/EF mount cinema cameras?
Yes. It uses the N120 port system, which is shared across Nauticam cinema housings like the NA‑R5C, Komodo, and Raptor models, enabling reused lens and port combinations.
How do I prevent leaks and monitor housing integrity?
An optional NA‑C400 vacuum monitoring system and vacuum valve is available. Activate vacuum before diving and receive alerts if seal pressure drops.