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Nauticam Releases Housing for the Fujifilm GFX100 II
By Ian Bongso-Seldrup, February 1, 2024 @ 06:00 PM (EST)

Nauticam has announced the NA-GFX100II—its new housing for the Fujifilm GFX100 II. The medium format mirrorless camera is built around a 102MP BSI CMOS sensor with the ability to record 16-bit RAW and TIFF files at up to 11,648 x 8,736 pixels. With the new X-processor 5, the camera can shoot bursts at up to 8fps with continuous AF (up from 5fps) as well as 4K/60p video using the full sensor width—doubling its predecessor’s 30p frame rate. The GFX100 II uses an updated AF prediction algorithm to deliver reliable and accurate subject tracking.

The new Nauticam NA-GFX100II has much in common with the company’s predecessor housing, the NA-GFX100S: Designed around the Nauticam’s Mission Control philosophy, all important controls are at your fingertips, including AF-ON and Q controls via a double lever near the right handle as well as PLAYBACK and DISP via a double lever near the left. There’s also a new front double lever giving access to customizable buttons Fn5 and Fn6.

As previously, the housing employs Nauticam’s N120 port system, which supports Fujifilm’s GF-mount lenses and allows you to make use of the company’s water contact optics, such as the WACP-2. Strobes can be triggered via the housing’s built-in fiber-optic bulkheads, and the housing can optionally accommodate the Fujifilm EF-X20 TTL flash or the Nauticam Flash Trigger for Fujifilm. The housing offers an M14 port, which can be used to install a bulkhead for attaching electrically triggered strobes. There’s also a large-bore M24 bulkhead, giving you the option of adding an external recorder such as the Atomos Ninja V or Atomos Shinobi, via HDMI 2.0 or HDMI 1.4, respectively.

Shipping now, the NA-GFX100II has an MSRP of $7,644 and can be ordered from retailers such as Backscatter.

When purchasing underwater photography equipment like the products mentioned in this article, please support DPG by supporting our retail partner—Backscatter.com.


Introducing NA-GFX100II

The GFX100 II introduces a revolutionary 102-megapixel large-format sensor. With the GFX100 II, you will experience precise subject detection and tracking AF and unparalleled video capabilities never seen in any previous GFX system or X Series camera. Enhanced by upgraded AI-developed autofocus algorithms and a cutting-edge 9.44-million dot EVF, photographers gain unparalleled accuracy. Filmmakers will benefit from full-width 4k/60, 4:2:2 ProRes video.

Key Camera Specs

  • New 102mp CMOS II HS and X-processor 5
  • 9.44 million dot EVF
  • Full width 4k60 4:2:2 ProRes
  • Multiple Cinema Formats: FUJINON, PREMISTA, 35mm, and 35mm Anamorphic
  • Worlds first: Natively enabled for Frame.io Camera-to-cloud integration with no accessory requirements

The GF-mount lens lineup continues to grow, with more and more lenses meeting the criteria underwater image-makers are after. Paired with the camera's medium-format 102MP sensor, which is 68% larger than a full-frame sensor, the resulting images have lower noise and greater dynamic range for a given exposure value.

The GFX100 II features the latest X-Processor 5 chip which powers the improved autofocus system that covers virtually 100% of the image area. The camera's large built-in OLED viewfinder has a 9.44M-dot resolution and features variable refresh rates and resolution to enhance battery life.

Video from the GFX100 II uses the full sensor width, preserving the original field-of-view of the lens, and can be recorded internally as 4K 60p video. Over HDMI the GFX100 II can output either an uncompressed 16-bit raw or 10-bit 4:2:2 4K video signal, excellent news for those using external monitors/recorders such as the Atomos Ninja V.

With dedicated settings for both still or video modes, switching between shooting modes is quick and easy via a lever atop the camera. The camera's "Q" menu can be customized to provide the most valuable information as either an overlay on the live-view representation or as the entire LCD area.


The NA-GFX100 II is built with the singular focus of creating an underwater housing that blends ergonomic design, intuitive control placement, and rugged field-tested durability. The resulting machined aluminum housing can be further refined with the addition of accessories from magnifying viewfinders to external monitors/recorders. Achieving the full benefit of the stunning 102MP resolution requires the use of underwater optics that are designed with high-resolution lenses in mind to deliver the highest optical quality possible.

Mission Control Design

The NA-GFX100 II is designed with our Mission Control philosophy which dictates placing controls where they are needed most, meaning no more missed shots fumbling for a control or dial. The majority of exposure and focus controls are within easy reach of the ergonomic handles that feature stainless steel stiffening brackets to reduce any unwanted movement even when using large strobes or video lights. A multi-direction pad on the upper right of the rear panel gives access to the camera's joystick. A double lever near the right handle activates the 'AF-ON' and 'Q' controls. Also on the right side are levers for Focus and View modes. Also, a new front lever to quickly switch between aperture and ISO sensitivity. The left side has a double lever for 'PLAYBACK' and 'DISP' as levers for turning the EF-X20 TTL flash on or off and a front double lever to access Fn5 & Fn6. On top of the housing is a lever for switching between 'STILL' and 'VIDEO' modes.

Premium Professional Optics

Built around the N120 Port System, the NA-GFX100 II supports a variety of GF-mount lenses with a selection of optical-quality glass and acrylic ports as well as access to Nauticam's lineup of premium professional optics. These optics are designed using industrial lens design software to provide unparalleled optical quality and impressive fields of view. The Wide-Angle Conversion Port 2 or WACP2, when used with the Laowa 17mm f/4 GFX Zero-D lens can achieve an impressive 140º FOV with an almost 0" minimum focus distance and incredible corner sharpness even at wider-open apertures such as f/5.6.

Flash Triggering

Flash triggering is via the optional 26351 Flash Trigger for Fujifilm and built-in fiber-optic bulkheads. An option for electronic strobe connection without TTL is also possible using the optional M14 Nikonos bulkhead with a universal hot shoe.

HDMI Output

The GFX100 II can output high-quality uncompressed 4K video over HDMI and the NA-GFX100 II is compatible with the Nauticam HDMI 2.0 system via the front M24 bulkhead. Even when recording video internally, the use of an external monitor over either HDMI 1.4 or 2.0 is a great tool to help with composition or image review.

Vacuum Check and Leak Detection System

The NA-GFX100 II comes with the Nauticam vacuum check and leak detection system as standard equipment. Combined with an optional 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.

What's In The Box

  • NA-GFX100II Housing
  • 90121 Spare main O-ring, O-ring remover and lubricant
  • 2x Optical bulkhead caps
  • 2x Handles with mounting balls and 2x Handle Brackets
  • Panasonic CR-2032 Battery (for moisture alarm)
  • Set of Allen Keys
  • Manual instruction card
  • Padded housing bag and shoulder strap

Recommended Accessories:

  • 32203 Nauticam 45 Viewfinder (Slightly Vignettes)
  • 32211 Nauticam Full Frame Straight Viewfinder 32/1:1
  • 32212 Nauticam Full Frame Straight Viewfinder 40/0.8:1
  • 32213 Nauticam Full Frame Angle Viewfinder 32/1:1
  • 31114 Nauticam Full Frame Angle Viewfinder 40/0.8:1

*32212/32214 are preferred

HDMI Output

Required accessories for HDMI 2.0 Cable System

  • 25086 M24 adaptor for HDMI 2.0 cable (incl. tightening tool)
  • 25099 M124A2R200-M28A1R170 HDMI 2.0 Cable (for NA-A1 to use with Ninja V housing)

Monitor housings

  • 17922 Nauticam Atomos Ninja V Housing for Atomos Ninja V 5” 4Kp60 4:2:2 10-bit Reorder/Monitor/Player (excl. HDMI 2.0 cable)
  • 17922S Nauticam Atomos Ninja V-S Housing for Atomos Ninja V 5” 4Kp60 4:2:2 10-bit Reorder/Monitor/Player (excl. HDMI 2.0 cable) with Atomos AtomX SDI Module
  • 17926S Nauticam NA-Ultra5 Housing for SmallHD Ultra 5 Camera Monitor

Required accessories for HDMI 1.4 Cable System

  • 25033 Standard HDMI bulkhead with M16 thread*
  • 26326 M24-M16 Adaptor for use with 26325 *instead of existing 25081
  • 25100 HDMI (D-A) 1.4 Cable in 200mm length for NA-A1 (for connection from HDMI Bulkhead to camera

*25033 is included in monitor housing.

Monitor housings

  • 17922 Nauticam Atomos Ninja V Housing for Atomos Ninja V 5” 4Kp60 4:2:2 10-bit Recorder/Monitor/Player (excl. HDMI 2.0 cable)
  • 17923 NA-Shinobi-H Housing for Atomos Shinobi 5.2" 4K HDMI Monitor with HDMI 1.4 input
  • 17926 Nauticam NA-Ultra5 Housing for SmallHD Ultra 5 Camera Monitor
  • 25082 HDMI 1.4 Cable for Ninja V Housing in 0.75m Length (for connection fro Ninja V housing to HDMI Bulkhead) *Required for use with 17922/17926 monitor housing.

Technical Specifications

Dimensions: 365mm(W) x 207mm(H) x 152mm(D)
Depth Rating: 100m
Port Mount: N120

Model Number: 17160
USA Retail Price: $7,644

More information is available from Nauticam at: www.nauticam.com



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