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Nauticam NA-A7II Housing for Sony A7II/A7RII/A7SII Cameras (No Electrical Bulkhead)

Nauticam NA-A7II Housing for Sony A7II/A7RII/A7SII Cameras (No Electrical Bulkhead)

SKU # 17414NB


With the release of three separate A7II camera models, Sony is covering the entire spectrum. The good news for underwater shooters of this line? You only need one housing for all three bodies. The NA-A7II is an incremental improvement over the outstanding NA-A7 housing, and is the ultimate underwater machine for full frame mirrorless image making whether you're shooting the A7II, A7RII or A7SII.

Technical Specifications

Depth Rating 100m
Weight 2.35kg
Dimensions 335mm (W) × 165mm (H) × 110mm (D)

Introducing Nauticam NA-A7II Housing for Sony A7II/A7RII/A7SII Cameras (No Electrical Bulkhead)

The A7 II Camera Series

All the cameras in this line are mirrorless interchangeable lens cameras in the Sony Alpha line and feature full-frame sensors and the same ergonomic camera design with the buttons, weight and form are all the same. Below is a quick look at the different models

Sony A7 II

The original release in the A7II line, this body features a 24.3MP sensor with 5-axis stabilization and the ability to shoot 1080 HD Video at up to 60p with 50mbps quality in XAVC S format. This body has the least amount of video-centric features and is aimed more at the still photographer.

Sony A7S II

The undisputed low-light king, the A7SII goes after the discriminating video shooter offering 4K internal recording with S-Log3 and S-Gamut3 LUTs to maximize data for post-processing. With an ISO that heads into the stratosphere of 409,600 and an autofocus that is capable at -4EV the A7SII can almost shoot in the dark. For still shooters there is still an ample 12.2MP.

Sony A7R II

Taking the middle road with features that both still and video shooters will love, this body has a pixel rich 42.4MP CMOS sensor (the first backlit CMOS available). Focus is equally impressive with 399 phase-detection AF points and ISO is a not too shabby 102,400. 4K video at 100Mbps also makes the A7RII a capable video rig.

The Nauticam NA-A7II Underwater Housing

The NA-A7II looks quite similar to the NA-A7 and the housings are approximately the same dimensions. As those photographers who have experienced the NA-A7 housing discovered that the housing is a stunning blend of aesthetics, ergonomics and functionality and the A7II housing only reinforces this mission.

The NA-A7II ships with built-in adjustable handles, featuring Nauticam’s famous contoured rubberized grip. The “AF/MF/AEL” button is given special treatment on the right side of the housing with a direct access lever immediately reachable by the right thumb. This allows the button to be programmed for AF-ON meaning “thumb focus” fans have perfect functionality. The shutter release can be accessed at the same time, offering simultaneous focus and shoot finger action. Like many Nauticam housings, the play button is brought up to the left thumb, and the three command dials (think shutter speed, aperture and exposure compensation) can be adjusted quickly with minimal reach. The ISO button is within short reach of the right thumb, important for video shooters. The record button is on the top right, thus eliminating camera shake during video start/stop.
The Function Menu button opens up common camera settings to a quick menu, and this button is a short reach with the right thumb. The programmable C3 button is a very easy reach and can be programmed for any of several functions. The housing features a switch to change between the EVF and the LCD providing rapid and secure transition between viewing modes, and supports Nauticam’s well renowned viewfinders.

A Nauticam Mini Flash Trigger made specifically for Sony is an available option, allowing the camera to shoot rapid fire with flood free optical cables. The housing includes an M16 bulkhead port for optional HDMI out, Nikonos style sync cable or other external accessory.

The NA-A7II accommodates for the larger than expected grip of the camera. Rather than compromise on image quality, the Nauticam designers chose to create ports than take into account this difference, hence a separate entry in the port chart for this housing.

Premium Professional Optics

The original A7 and A7R cameras from Sony sparked a huge interest in going full frame for mirrorless. For the underwater photographer, this enthusiasm was quickly diminished by the fairly limited lens selection. Underwater image makers rely on very wide angle lenses and macro lenses, and they were nowhere to be found.

However, the recently released 16-35mm is a game changer. This is a lens from the Sony Zeiss partnership, quaintly dubbed the Sony Vario-Tessar T* FE 16-35mm F4 ZA OSS. It’s a terrific rectilinear wide angle zoom that focuses close and demonstrates very good sharpness all around with medium to large sized dome ports. The Nauticam 180mm dome is an ideal choice for this lens.

For macro lovers, Sony two days ago announced a 90mm macro beauty (Sony FE 90mm f/2.8 Macro G OSS), and this lens will be supported as soon as possible after it is shipped (slated for July). Also just announced is a new 28mm f/2 lens with a fisheye adapter, similar to what Sony did with the fisheye and wide angle adapter on the 16mm lens for the NEX series. This is an appealing way to get fisheye, as it allows multiple configurations with a single lens. Look for more info about Nauticam support for this lens when it ships (slated for May).

Owners of Canon full frame lenses like the EF 8-15mm f/4L Fisheye USM, EF 100mm f/2.8L Macro IS USM, or the EF 16-35mm f/2.8L II USM lenses will apreciate the ability to use these fine optics with the A7 series. This is made possible with a Metabones adapter (Canon EF Lens to Sony NEX Smart Adapter (Mark III or Mark IV)). These lenses work well on the A7 series, providing both aperture and autofocus control from the camera.

Nikonos Lens Support

Nikonos “water contact” lenses are the stuff of legend, but too many of them are sitting in a box in a closet. Time to dust them off! The full frame A7II is a great way to bring those lenses back to action. With the full frame sensor, the Sea&Sea 12mm or the famous Nikonos 15mm behave like they were intended to.

Viewfinder Options

The NA-A7II ships with a standard 0.66x viewfinder. This standard optical glass viewfinder is travel friendly and suitable for image makers that care to use the LCD for most framing. Many photographers prefer the ease of a magnified viewfinder with adjustable diopter to take advantage of the excellent EVF in this camera.

Nauticam produces a “straight” 180º enlarging viewfinder and a 45º angled enlarging viewfinder to enhance the ease of close quarters work often associated with macro shooting. Both viewfinders have high quality optics, and allow bright viewing of the entire image. A patented external dioptric adjustment allows personal adjustment to a sharp-as-a-tack standard underwater and viewfinder changes can be executed in less than 30 seconds without using tools. Exceptional composition and focus accuracy have never been more accessible.

Locking Mode Dial Support

Sony has updated the mode dial to a locking design with A7S II/A7R II. This addition has forced a minor change to the housing design allowing mode dial control support.

All 17414 and 17414NB Housings shipped from Nauticam after August 24, 2015 have this redesigned mode dial assembly installed from factory. This corresponds to SN A151096 and higher.

17455 – NA-A7II Upgrade Kit

To further support existing NA-A7II owners, and protect dealer inventory investments, we have designed a user installable upgrade kit to update the mode dial control. This kit is available now!

Integrated Vacuum Check and Leak Detection System

The Nauticam vacuum check and leak detection system is available with NA-A7II as standard equipment. Combined with an optional vacuum valve, 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. The housing ships with a rear bulkhead port specifically for installing optional vacuum valves, leaving the other bulkhead port available for HDMI, sync cables and other accessories.

What's In The Box?

  • NA-A7II Housing
  • Spare Main O-ring, o-ring remover and lubricant
  • CR-2450 Battery (for Moisture Alarm)
  • Set of Allen Keys
  • Instruction Manual



    The A7SII supports HDMI output to external recorders such as the Atomos Shogun. Below is a highlight reel filmed with the A7SII and captured by the Atomos Shogun.

    The Nauticam vacuum check and leak detection system is available with NA-A7II as standard equipment.


    Support & Downloads

    NA-A7II Instruction Manual