Fujifilm GFX 50S - Nauticam NA-GFX50S Housing - 17153

Fujifilm GFX 50S - Nauticam NA-GFX50S Housing - 17153

Regular price $17,932.50
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NA-GFX50S for Fujifilm GFX 50S Camera

The marriage of medium format and mirrorless has led to the Fujifilm GFX 50S. The Nauticam NA-GFX50S and the N120 Port System supports the dedicated new lens lineup of GF lenses. With the NA-GFX50S you can now capture 4:3 aspect ratio 51.4MP uncompressed 14bit RAW underwater images in a form factor similar to a pro-level DSLR from a sensor that is 1.7x larger.

Introducing NA-GFX50S

Fujifilm GFX 50S

The Fujifilm GFX 50S brings medium format imaging to a mirrorless camera system. To take full advantage of the 51.4MP sensor, Fujifilm has also developed the new "G" lens mount and the "GF" lens lineup. The GFX 50S captures 14bit uncompressed RAW images in a 4:3 aspect ratio and features an ISO range from 50-102,400. Built for extreme environments the GFX 50S is water-resistant and freeze proof to -10ºC.

    Key Camera Specifications
  • 51.4MP medium format CMOS sensor (43.8 × 32.9mm) with Bayer filter array
  • 3.69M-dot OLED Removable EVF
  • 3.2" 2.36M-dot touch LCD tilts horizontally and vertically
  • AF-point-selection joystick
  • Weather-sealing
  • 1/125 sec flash sync speed
  • 3 fps continuous shooting
  • 1080/30p video capture
  • Dual SD card slots (UHS-II)

The NA-GFX50S Underwater Housing

Nauticam has produced housings for a variety of both medium format and mirrorless housings.  The NA-GFX50S takes all that experience and produces the first housing for a mirrorless digital medium format camera.  Nauticam has continued to offer unencumbered access to the essential controls that underwater photographers need.  

The GFX50S has 10 customizable buttons.  The camera's "Q" menu can also be customized to accommodate most-used menu items.  The "Q" menu is easily accessed by the double thumb-lever on the right hand side which also accesses the assignable "Fn 4" button.  The left hand double thumb lever accesses the "PLAY" and "DELETE" functions.  

The FOCUS piano key on the right hand side engages the joystick to change the focus point.  The GFX50S has a total of 117 contrast focus points that can be further subdivided to 425 individually selectable points.  The neighboring Piano Key activates the "Fn 5" button of the camera.

Flash Triggering

Flash triggering is performed via built-in fiber optic bulkheads using the Fujifilm EF-X20 TTL flash which fits into the housing when mounted on the hot-shoe. Flash EV can be controlled via a dial atop the housing and status can be seen through dedicated viewports.  The flash can be turned on and off via a lever on the left side of the housing.

Premium Professional Optics

The GFX 50S uses a new lineup of dedicated lenses with the moniker GF. The Nauticam N120 Port Systems supports many of those currently available including ultra-wide primes, zooms, and macro lenses.


The standard optical glass viewfinder is very good and travel friendly, but many photographers prefer the ease of a magnified viewfinder with adjustable diopter. 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.

Integrated Vacuum Check and Leak Detection System

The Nauticam vacuum check and leak detection system is shipped with NA-GFX50S as standard equipment. Combined with an accessory vacuum valve this monitoring system provides constant updates on the water tight and safe-to-dive status of the housing. A simple color 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 Nauticam system is temperature compensated, eliminating false alarms caused by a change in outside temperature, or from a camera heating up on an action packed dive.

In The Box
  • NA-GFX50S Housing
  • Spare main o-ring, lubricant and removal tool
  • Set of allen keys
  • CR2032 Battery for Leak Detector
  • 25625 M16 Vacuum Valve II (Pushbutton Release)
  • 32201 Nauticam 180˚ straight viewfinder 
  • 32203 Nauticam 45˚ viewfinder  
  • Various electrical bulkheads
  • Internal  HDMI D to D cable in 200mm length is needed for connecting with an external monitor, however, It is included within Nauticam monitor housing.
 Depth Rating 100m
Weight 3.5kg
Dimensions 383mm x 212mm x 158mm
Port Opening N120
How long will it take for my order to arrive after I make payment?

That depends on where you live and whether we have an item in stock or not. While we do have many items in stock, we don't carry everything. If you need an item in a hurry, it's a good idea to contact us and find out if your item is in stock.

If we have it in stock, we can usually send it out as soon as we receive payment, or you can pick it up. If an item is not in stock, we'll need to order it from our suppliers, which means it can take 1-2 weeks to arrive at your door (usually closer to a week).

Sometimes delivery can take longer, if our manufacturers are out of stock, for example, but this is unusual - we let customers know as soon as possible if something like this happens.

Update 18/12/2020: There are some production delays at present that may increase wait times on items like housings. We apologise for the inconvenience. If there are any delays with your order, we will communicate this immediately.

How do you ship my orders?

We use New Zealand Post and CourierPost to ship orders. Our default is courier, though you may organise an alternative with us by contacting us directly. CourierPost aims for next day delivery nationwide between major towns and cities in the North Island. South Island delivery can take two days. If you require next-day delivery in South Island, choose the express shipping option for the South Island. If you spend over $250 get your shipping for free!


We hope you, your families and friends are safe and healthy during the current Covid-19 situation.

As you may know we are a small team at Sea Tech Ltd. Our team has zero close contact with people outside our bubble.

We wish to assure you, that when we begin fulfilling orders on 28 April, we will be following the government health guidelines surrounding safe operating procedures. Hygiene basics such as hand washing, coughing/sneezing protocols as well as the wearing of appropriate protective equipment such as face masks.

We are continuing to follow the regular updates to government health guidelines and initiatives regarding Covid-19.

Please do not hesitate to contact us if you wish to discuss any aspect of our delivery service via Courier Post New Zealand.

We wish you all the best during these challenging times.

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