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The OM System's OM-1 is the first high-end Micro Four Thirds mirrorless camera from OM Digital Solutions which purchased the Olympus camera division. The OM-1 features a 20MP quad-pixel AF stacked CMOS sensor.  It is paired with the latest TruePic X processor to deliver 3x faster processing speeds and is capable of 120 fps shooting with the electronic shutter. The O-M1 can also capture 4K UHD or DCI at 60p in the OM-Log profile with 10-bit color and maximum dynamic range for post production.


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)
Depth Rating 100m
Port Mount N85




Reviving the 'OM' moniker on it's 50th anniversary, OM System is releasing the OM-1 Micro Four Thirds camera aimed at the "on-the-go pro".  The OM-1 features a new stacked CMOS 20MP sensor.  The stacked design offers faster readout speeds and improved autofocus capabilities over previous BSI sensors.  Billed as a true hybrid-shooter the OM-1 can capture up to 10-bit DCI or UHD aspect ratio 4K video at up to 60p and HD at 240fps.  Over HDMI, the OM-1's output can be recorded as ProRes RAW on the Ninja V and Ninja V+ recorders from Atomos. 

Key Camera Specs

  • 20MP Stacked CMOS Sensor
  • 1053 X-type AF points
  • Up to 120 fps with electronic shutter
  • Image stabilization rated to 7EV of correction (up to 8EV with compatible lenses)
  • Large 5.76M-dot OLED electronic viewfinder
  • Dual UHS-II SD card slots
  • UHD or DCI 4K/60p video, 1080 up to 240 fps
  • Weather sealing rated to IP53


The OM Systems OM-1 is characterized by its combination of extreme customizability and impressive stabilization in a compact hybrid-shooting package. The Nauticam NA-OM1, similar to the OM-1 is a refinement of it's predecessors. Nauticam has produced housings for a wide range of Micro Four Thirds offerings from both Olympus and Panasonic. Throughout the evolution of Micro Four Thirds cameras, Nauticam has adapted our design to help image makers take full advantage of every camera advancement. More than a simple waterproof case, the NA-OM1 integrates with the OM-1 to adapt and improve upon the camera's features for underwater shooting.


Regardless of where a dial or button may be found on the camera body, Nauticam engineers make sure it is located where it is needed most on the housing. This Mission Control philosophy drives the design of every housing and provides for the most intuitive and easy to use housings available. The NA-OM1 features a thumb lever, easily accessed from the ergonomic rubberized right handle that actuates the AF-ON control with a dedicated red record button close by.  This back-button autofocus method prevents the camera from refocusing between shots, allowing the user fine control over a shot's focus and is critical whether shooting macro or fast moving wide-angle subjects. 


The OM-1 can be used with the optional Olympus FL-LM3 flash inside the NA-OM1 to provide accurate TTL flash triggering through the integrated Sea&Sea style fiber optic bulkheads. For high-speed manual flash triggering, the optional Mini Flash Trigger for Olympus (26306) can be used. The trigger is powered by onboard coin-style lithium batteries, with thousands of flashes available from a set. Electrical triggering of legacy wired strobe systems is possible via an electrical Nikonos style bulkhead (optional).


A camera system is only as good as the optics placed in front of it. Nauticam's extensive line of dome and flat ports support a wide variety of Micro Four Thirds lenses. For even higher image quality and versatility, the NA-OM1 can be used in conjunction with Nauticam's lineup of Water Contact Optics. 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.


A clear view for fine focus and composition is critical for successful underwater photography, and nothing beats a magnifying viewfinder. These viewfinders use distance, not closeup vision, and provide a large, clear view of the high resolution Olympus electronic viewfinder. The OM-1 features a  much improved 5.76M Dot OLED electronic viewfinder.  Available in Angled 45º (PN 32205 or 32213) and Straight 180º (PN 32204 or 32211) formats, both viewfinders have external dioptric adjustments for dialing in perfect correction matched to the photographer’s eyesight.  When used with the NA-OM1, the Full Frame Angle Viewfinder 32°/ 1:1 (32213) or the Full Frame Straight Viewfinder 32°/ 1:1 (32211) requires the 32215 Viewfinder Collar Adaptor.


The Nauticam vacuum check and leak detection system is available with NA-OM1 as standard equipment. Combined with an optional M14 Vacuum Valve II (PN 25624), this monitoring system provides constant updates on the water tight and safe-to-dive status of the housing. A simple coded LED lighting system lets the user know that the vacuum is solid, or that the housing is losing vacuum. Leak detection is built into the same circuit, so if there is water intrusion, an audible and visual indication will occur.