Nauticam NA-OM1 Underwater Housing for the OM System OM-1 & OM-1 Mark II
The Nauticam NA-OM1 is a precision-machined aluminum underwater housing engineered for the OM System OM-1 and the OM-1 Mark II. Both cameras share the same body, so a single NA-OM1 supports either model without modification. Prized by underwater shooters for its compact Micro Four Thirds form factor, professional performance, class-leading in-body image stabilization, weather-sealed reliability, and deep customization, the OM-1 is one of the most capable cameras a diver can take below the surface. The NA-OM1 does far more than keep that camera dry — it engineers the shooting experience for the water, placing every critical control exactly where your fingers expect it, freeing you up to focus on making pictures.
Key Features of the Nauticam NA-OM1
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Mission Control ergonomics: Nauticam positions the controls you use most — ISO, AF-ON, shutter speed and aperture dials, record button, playback and the Fn levers — as close to the handles as possible, so you can adjust settings by feel without ever taking your eye off the subject or your hands off the housing.
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Integrated vacuum & leak detection: An onboard electronic moisture alarm and leak-detection circuit works with the optional M14 Vacuum Valve II to confirm a perfect seal before you ever enter the water.
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Dual fiber-optic flash triggering: Two Sea&Sea-style fiber-optic bulkheads support TTL strobe firing, with a manual Mini Flash Trigger option for high-speed manual work.
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N85 port system: Full access to Nauticam's Micro Four Thirds N85 lens ports, zoom gears, and water-contact optics.
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100m depth rating: Rated for professional and technical dive profiles well beyond recreational limits.
Lens & Port Compatibility
The NA-OM1 uses Nauticam's N85 port mount, the port system purpose-built for Micro Four Thirds mirrorless cameras. The N85 lineup offers dedicated ports and zoom/focus gears for the most popular Olympus M.Zuiko and Panasonic Lumix G lenses, from ultra-wide zooms and rectilinear primes to dedicated macro optics.

Hybrid Shooting & HDMI Monitoring
The OM-1 is a true hybrid, capable of high-bit-rate 4K capture alongside its stills prowess, and the NA-OM1 is ready to support serious video work. The housing accommodates HDMI output for external monitoring and recording, with both HDMI 2.0 and HDMI 1.4 pathways supported through dedicated Nauticam monitor housings such as the Atomos Ninja V. A large, bright external display makes critical focus and composition far easier at depth.
Enhanced Viewfinder Options
A crisp, magnified view is the single biggest upgrade you can make for fine focus and composition underwater, and the OM-1's excellent 5.76M-dot OLED electronic viewfinder deserves a great optical viewfinder in front of it. The NA-OM1 accepts Nauticam's magnifying viewfinders in both 180° straight and 45° angled formats, each with external diopter adjustment so you can dial in correction matched to your eyesight.
Premium Water-Contact Optics
One of the greatest advantages of shooting Micro Four Thirds in a Nauticam housing is access to the company's acclaimed wet-optic system. The WWL-1B delivers an ultra-sharp ~130° field of view with compatible flat-port zoom setups and can be removed underwater, letting you switch between wide-angle and standard framing on a single dive. On the macro side, the CMC-1 and CMC-2 screw onto the front of a macro port to push magnification into super-macro territory for tiny critters and fine detail.
Build Your System — Recommended Accessories
A housing is the foundation of a complete underwater imaging rig. Use the Reef Photo System Builder to assemble a matched setup, or start with these recommended NA-OM1 accessories:
What’s in the Box
- NA-OM1 housing with two handles and mount balls
- Spare main O-ring (PN 90136), O-ring remover, and lubricant
- Two plugs for the optical fiber cable mounts
- Panasonic CR-2032 battery (for the moisture alarm and leak detector)
- Set of Allen keys
- Manual instruction card
- Padded housing bag and shoulder strap
Technical Specifications
| Compatible Cameras |
OM System OM-1 and OM-1 Mark II |
| Depth Rating |
100m |
| Dimensions |
307mm (W) x 179mm (H) x 118mm (D) |
| Weight in Air |
2.0 kg |
| Weight in Water |
-0.2 kg (with camera and battery) |
| Port Mount System |
N85 |
| Main O-ring Part Number |
90136 |
| Flash Triggering |
Dual Sea&Sea-style fiber-optic bulkheads (TTL & manual) |
Why Buy the NA-OM1 from Reef Photo & Video
When you're choosing the NA-OM1, you want more than a box in a cart — you want a partner who dives what they sell. Reef Photo & Video is an authorized Nauticam dealer with decades of hands-on experience building, servicing, and troubleshooting professional underwater systems. We help you choose the right ports, optics, lighting, and monitoring to accompany your housing, and provide genuine in-house service long after the sale. Have a question about compatibility or configuration? Contact our team and we'll build the perfect rig for your next dive.
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