The NA-OM5II continues Nauticam’s Mission Control design, where essential functions such as the front and rear dials, REC, AF-ON, CP, Fn1, and Fn2 levers are positioned for direct, intuitive access. This Nauticam housing incorporates a secure rotary-style locking system, making battery and memory card changes straightforward. Lens swaps are equally efficient, thanks to Nauticam’s port locking system, which maintains a reliable seal while enabling quick changes.
Engineered as a compact and reliable Nauticam underwater housing, the NA-OM5II includes an integrated vacuum check and leak detection system as standard. Paired with an optional M14 vacuum valve, the system continuously monitors housing integrity and provides both visual and audible alerts in case of pressure loss or water ingress. An optional LCD window supports Nauticam’s full-frame viewfinders, offering enhanced monitoring for stills and video workflows. Mounting options include an M10 threaded point, a cold shoe, and tray handles with strobe ball mounts.
For lighting, users can add the Mini Flash Trigger for Olympus for high-speed manual optical triggering—delivering thousands of flashes per battery set—or opt for an electrical Nikonos-style bulkhead for legacy strobes. Optically, the housing leverages Nauticam’s broad Micro Four Thirds port support, detailed in the official Nauticam port charts. This includes both dome and flat ports as well as Nauticam’s Water Contact Optics. For example, pairing the Olympus 14–42mm EZ zoom with the WWL-1b enables a full zoom-through 130° ultra wide-angle field of view without changing ports.
- Depth-rated, aluminum housing with integrated vacuum check & leak detection (valve optional)
- N85 port system with support for WWL/CMC wet optics and bayonet accessories
- Dual Sea&Sea-style fiber-optic ports; TTL via camera flash or optional flash trigger
- Ergonomic levers for shutter/AF-ON, easy access to dials & custom controls
- M14/M16 accessory bulkheads for vacuum/HDMI and future expansion
Pro-Level Sealing with Confidence
Shoot deeper and travel lighter. The NA-OM5II’s corrosion-resistant aluminum shell, double main O-ring and integrated vacuum monitoring deliver dependable watertight integrity—before you ever hit the water.
- Depth rating: 100 m / 330 ft
- Vacuum check & leak detection board pre-installed
- Optional M14 vacuum valve for rapid pre-dive checks
Ergonomics That Feel Instinctive Underwater
Large, sculpted levers position shutter and AF-ON under natural finger reach, while knurled dials translate the camera’s front/rear controls for fast exposure changes with thick gloves.
- Direct access to key OM-5II functions and custom buttons
- Clearly labeled, glove-friendly controls with firm tactile feedback
- Balanced handling with trays, handles, and lanyards
Flexible Strobe & Video Light Workflow
Trigger optically with reliability in surf and surge, add TTL via camera flash or optional trigger, and route HDMI through the M16 bulkhead to a compatible external monitor when you’re shooting video.
- Dual Sea&Sea-style fiber-optic ports
- TTL options with supported strobes/flash triggers
- M16 accessory bulkhead for monitor/expansion
N85 Port System & Class-Leading Wet Optics
Build a tiny kit with huge image quality. Pair native MFT lenses behind the N85 system and add Nauticam WWL-1B/WWL-C for razor-sharp wide angle or CMC-1/CMC-2 for super-macro—no dome swap on the boat.
- Compatible with N85 ports & extensions
- Supports WWL/CMC wet optics via bayonet mounts
- Lens support as listed in the nauticam port charts
- For example, with the Olympus 14-42mm f/3.5-5.6 EZ Lens, the Nauticam WWL-1 provides a full zoom through ultra wide-angle 130º field of view.
Why Buy from Bluewater Photo
Bluewater Photo is an authorized Nauticam dealer with in-house experts who dive and shoot this gear. Your housing is backed by Nauticam’s limited warranty and our lifetime support—setup help, port/lens advice, and post-purchase guidance.
- Authorized dealer: genuine products & manufacturer support
- Pre-shipment checks and expert configuration advice
- Fast shipping and responsive tech support from real underwater shooters
Build the compact rig you’ll actually travel with—then bring home big-system images.
Lens Recommendations for Underwater:
- Olympus 60mm Macro - fast focusing and stunning macro
- Panasonic 8mm Fisheye - perfect wide angle option for reefs, wrecks, and close focus wide angle
- Panasonic 7-14mm Wide Angle - Awesome for pelagics, sharks, and landscape photos. Wide angle when you do not want the wide fisheye view and zoom offers more flexibility if you can't get right up close to your subject.
- Panasonic 45mm Macro- High quality macro lens
- Olympus 9-18mm Wide Angle - great for pelagics, and wide angle when you do not want the wide fisheye view. Zoom offers more flexibility if you can't get right up close to your subject.
- Panasonic 12-35mm - great mid range wide lens for video, fast F2.8 min aperture.
- Olympus 12-50mm - a good mid-range zoom option. Offers built in macro mode that is compatible with the Nauticam housing
Read about the best micro-four thirds lenses for underwater
Recommended Strobes:
- Sea & Sea YS-D2J (Japanese Version)
- Inon Z-330 Underwater Strobe
- Ikelite DS-161 Strobe with NiMh Battery
- iTorch Symbiosis SS-3
For other options, see our other recommended strobes see our Buyer's Guide for Best Underwater Strobes
Recommended Video Lights:
- Light & Motion Sola 2500F Video Light - Bluewater Exclusive!
- Fisheye Fix Neo Premium 4030 EF II Video Light
- Big Blue VTL3500P Video Light
For other options, see our other recommended strobes see our list of best underwater video lights.
Learn More — Guides & Articles
- Nauticam Housings — full line-up of all our Nauticam underwater housings
- Best Underwater Video Lights for 2025 — Our top picks
- Strobe Positioning Basics — clean light for macro & wide
- Guide to Wet Lenses — Introduction to Wet Lens underwater Photography
Specifications
- Camera Compatibility
- OM System OM-5 Mark II (OM-5II)
- Housing model: NA-OM5II
- Build & Sealing
- Machined aluminum alloy with hard anodizing; stainless hardware
- Depth rating: 100 m / 330 ft
- Integrated vacuum check & leak detection board (valve sold separately)
- Double main O-ring; user-replaceable port O-rings
- Controls & Ergonomics
- Dedicated shutter & AF-ON levers; access to front/rear dials
- Clearly labeled pushbuttons and customizable control mapping
- Multiple attachment points for trays, handles, lanyards
- Port System & Optics
- Nauticam N85 port mount
- Supports Nauticam wet optics (WWL-1B/WWL-C, CMC-1/CMC-2) with compatible lenses
- Definitive lens/port pairings in the nauticam port chart
- Connectivity & Expansion
- Dual Sea&Sea-style fiber-optic strobe ports (manual & TTL options)
- Bulkheads: 1× M14 (vacuum), 1× M16 (HDMI/accessory)
- 1/4"-20 mounting points for tripod, lights, and accessories
- In the Box
- NA-OM5II housing body with pre-installed leak detector
- Spare main O-ring, lubricant, O-ring remover
- Allen keys, port cap, and user documentation
- Notes
- Flash triggering, HDMI cabling, ports, and wet optics sold separately
- For best results confirm lens compatibility in the nauticam port chart prior to purchase
- NA-OM5II Housing
- Housing Cap
- 2x Optical bulkhead caps
- Panasonic CR-2032 Battery (pre-installed for moisture alarm)
- 90139 Spare main O-ring, O-ring remover and lubricant
- Set of Allen Keys
- Padded housing bag and shoulder strap
1. What is the depth rating of the Nauticam OM System OM-5 housing?
The NA-OM5II nauticam housing is depth-rated to 100 meters (330 feet). Its double O-ring main seal, anodized aluminum body, and integrated vacuum check and leak detection system provide reliable protection for demanding dive environments.
2. Which ports and lenses are supported with this Nauticam underwater housing?
The NA-OM5II uses the Nauticam N85 port system. It supports a wide range of Micro Four Thirds lenses with dome and flat ports, as well as Nauticam’s Water Contact Optics (WWL, CMC). Lens and port pairings are listed in the official nauticam port charts.
3. Does the housing include a vacuum and leak detection system?
Yes. The NA-OM5II comes with Nauticam’s integrated vacuum check and leak detection electronics. With an optional M14 vacuum valve, the system continuously monitors housing integrity and provides coded LED and audible alerts if a leak or pressure loss occurs.
4. How do I trigger strobes with the Nauticam OM-5 housing?
The housing has dual Sea&Sea-style fiber-optic ports for optical triggering. An optional Mini Flash Trigger for Olympus enables high-speed manual flash firing with long battery life. For legacy setups, an optional electrical Nikonos-style bulkhead can be installed.
5. Can the Nauticam OM-5 housing be upgraded with viewfinders or accessories?
Yes. The housing supports an optional LCD window that allows the use of Nauticam’s full-frame viewfinders for enhanced monitoring. It also features an M10 threaded mount, cold shoe, and tray/handle systems with strobe mounting balls, making it flexible for accessories like monitors, focus lights, and arms.
Why Buy from Bluewater
- Authorized Garmin & dive gear dealer — full manufacturer warranty.
- Founded and staffed by active divers, underwater photographers, and explorers.
- Decades of combined hands-on experience with the gear we sell.
- We test and use most of the equipment ourselves before recommending it.
2. Risk-Free Purchase (See Terms Of Service)
- 30-day, hassle-free returns (unused condition).
- Secure payment with trusted gateways (credit card, PayPal, etc.).
- All products shipped in factory-sealed boxes (unless stated).
- Transparent policies — no hidden fees or fine-print surprises.
3. Fast & Reliable Delivery
- Free U.S. shipping over $200 for Photo Gear & $50 for Dive Gear.
- Same-day dispatch on in-stock orders placed before 12pm.
- Worldwide shipping options with reliable carriers.
- Real-time tracking updates sent straight to your inbox.
4. Extra Value at No Extra Cost
- Lifetime product support by email, phone, or in-store.
- Setup help & usage tips tailored to your needs.
- Exclusive buyer’s guides, tutorials, and dive trip invitations.
- Early access to special promotions & new releases.
5. Social Proof & Community
- Thousands of satisfied divers & underwater photographers worldwide.
- 5-star average product & service ratings.
- Active in dive events, conservation projects, and photography competitions.
6. Personal Connection
- Direct line to our in-house experts — no outsourced call centers.
- Friendly, passionate staff who speak “diver” fluently.
- We care about your whole adventure, not just the sale.
We offer lifetime support with all purchases.
Please call or email us with any questions; our knowledgeable staff would love to assist you.
