The Sony FX3 is a compact full-frame cinema camera that combines professional video capabilities with a small, lightweight body. It features a 10.2MP back-illuminated CMOS sensor, supports 4K 120p internal recording, and includes a fan-assisted cooling system for extended shooting durations. Due to its design and performance characteristics, it is widely used in filmmaking and professional video production, including underwater cinematography.
To operate the FX3 safely below the surface, a Sony FX3 underwater housing is required. These housings are engineered to provide access to the camera’s key functions while ensuring watertight protection at varying depth ratings, typically ranging from 40m to 100m depending on the model.
A fx3 underwater housing or fx3 water housing is constructed from durable materials such as anodized aluminum or polycarbonate and often includes support for accessories like external monitors, vacuum leak detection systems, interchangeable ports, and strobe connectors. Housings must be matched with compatible lenses and port systems to maintain proper functionality and image quality underwater.
Each Sony FX3 water housing listed on this page is compatible with the FX3 body layout, including its top handle unit and various external connectors. Some models are also compatible with the Sony FX30, which shares a nearly identical form factor.
This guide compares leading FX3 underwater housing options by depth rating, materials, control accessibility, accessory compatibility, and practical considerations such as weight and port configuration
Sony FX3 UNDERWATER REVIEWS:
Watch: FX3 camera & Housing in Action
Top Sony FX3 Underwater Housings
Marelux Sony FX3 Underwater Housing
*Made from Durable Alluminum Alloy, Also Compatible with FX30*
This FX3 underwater housing features a dual O-ring seal system, integrated vacuum leak detection, and compatibility with a range of Marelux lens ports. The Sony FX3 underwater housing and Sony FX30 underwater housing are configured identically, allowing users to switch between camera bodies without changing housings. The FX3 water housing supports standard M14/M16 bulkheads and is designed for use in both recreational and professional diving environments.
Key Features of the Marelux Sony FX3 Underwater Housing
Depth Rating: 100m / 330ft
Material: Anodized Aluminum
Weight: 1.97 kg
Best For: Professional videographers and filmmakers
Key Features:
Ergonomic control layout with Mission Control design
Vacuum leak detection and moisture alarm
HDMI 2.0 compatibility for external monitors
Compatible with both Sony FX3 and FX30
N100 port system for seamless lens integration
Ikelite 200DL Sony FX3 Underwater Housing
*Affordable & Sturdy*
This FX3 underwater housing is compatible with the Dry Lock (DL) port system, allowing us to use a variety of lenses underwater. The housing includes a vacuum valve for optional leak detection and supports M16 bulkheads for connecting external accessories. Since the Sony FX3 underwater housing and Sony FX30 underwater housing share the same body design, we can switch cameras without needing a separate housing. The FX3 water housing is equipped with a tray and handles for stability and integrates with our existing Ikelite housing components. We rely on this Ikelite underwater housing setup for a compact and modular underwater workflow.
Key Features of the Ikelite 200Dl Underwater Housing
Depth Rating: 60m / 200ft
Material: ABS-PC blend
Weight: 2.7 kg
Best For: Intermediate underwater video creators
Key Features:
Affordable and durable
TTL strobe support with optional converter
Dry lock port system compatible with most Sony full-frame E-mount lenses
Optional USB-C Charging & Data Transfer Bulkhead
Clear back for easy monitoring
Nauticam Sony FX3 Underwater Housing
*Excellent Ergonomics, User-friendly, Durable*
This FX3 underwater housing comes equipped with integrated handles, a vacuum leak detection system, and is compatible with the Nauticam N100 port system, which we pair with a range of lenses. The M16 and M24 bulkheads allow for reliable connections to external monitors and accessories. Since the Sony FX3 underwater housing and Sony FX30 underwater housing share the same control layout, we can switch between camera bodies without modifying the setup. This FX3 water housing integrates smoothly into our existing Nauticam housing system and supports the accessories we use on professional dives.
Key Features of the Nauticam NA-FX3 Housing
Depth Rating: 100m / 330ft
Material: Anodized Aluminum
Weight: 1.97 kg
Best For: Professional videographers and filmmakers
Key Features:
Ergonomic control layout with Mission Control design
Vacuum leak detection and moisture alarm
HDMI 2.0 compatibility for external monitors
Compatible with both Sony FX3 and FX30
N100 port system for seamless lens integration
Soon to be Released Sony FX3 Underwater Housings
Sea & Sea Sony FX3 Underwater Housing
*Built to Last, Compact & Lightweight, Elegantly Engineered*
Aquatica Sony FX3 Underwater Housing
*Reasonably priced, Rugged, Compact*
The Sony FX3 combines the best of high-end cinema cameras with Sony's immensely popular A7S III and packages it all in a small, compact body. But don't let its size fool you; it packs a lot of excellent features. The camera is powered by a 12.1MP Exmor R BSI CMOS sensor and a BIONZ XR processor, enabling it to capture 4K video with internal 10-bit 4:2:2 sampling or 16-bit raw output. Auto-focus on the Sony FX3 camera is second to none. The The camera does not have a viewfinder in favor of saving weight as most people will be using an external monitor with this camera or shooting with the built-in LCD screen; it also comes with a detachable handle to aid comfort and help get smooth footage when shooting video. The detachable handle has two XLR inputs, allowing high-quality external audio recording equipment to be directly integrated into your shooting setup.
Overall, the Sony FX3 will likely appeal to dedicated video shooters looking for an extremely capable video setup in a compact, built-for-purpose body.
Quick Specs:
- Full-frame 12.1MP Exmor R BSI CMOS sensor
- BIONZ XR processor
- S-cinetone color
- S-Log3/2 gamut support
- 10-bit HLG for simple HDR productions
- In-camera image stabilization
- Fast hybrid AF with 627 focus points
- Real-time eye AF, eye and face detection, and subject touch tracking
- Variable angle 3.0" touchscreen LCD
- Dual CFexpress type A/SD slots
- Wifi: 2.4Ghz & 6Ghz
Next Steps After Picking Your Housing:
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Nirupam Nigam
Nirupam Nigam is a marine biologist, underwater photographer, and senior editor at Bluewater Photo, where he specializes in reviewing underwater camera gear. With a background in marine biology from UCLA and years of dive experience around the world, Nirupam combines scientific knowledge with real-world testing to deliver clear, honest, and practical gear reviews.
Known for his hands-on approach and technical expertise, Nirupam helps divers and photographers—from beginners to pros—make informed choices through detailed articles, tutorials, and workshops. His photography has been recognized in international competitions and featured in top dive publications. Whether testing the latest housings or leading underwater photo trips, Nirupam is dedicated to helping others capture the ocean’s beauty with confidence and creativity.