Review & specs: Fujifilm GFX 100S

The Fujifilm GFX 100S camera arrives with dual high-speed SD card slots that can be used for data backup or additional storage space, a USB port for charging and files transfers, mic and headphone slots and a micro HDMI port. The battery is borrowed from the X-T4 and is not as big as the ones on some other GFX bodies, but it provides a acceptable 460 shots on a charge. There is no preference for a vertical battery grip just like the GFX 50S – but that’s a reasonable tradeoff for the radical bodyweight reduction.
The GFX 100S seriously provides on image quality, starting with its remarkably great low-light efficiency. You might not count on that from a digital camera with a 102-megapixel sensor. Nevertheless, those pixels are spread around a huge 43.9 x 32.9 mm sensor area, so the pixel pitch is basically the very same (3.76 microns) as the 61-megapixel sensor on Sony’s A7R IV.

The GFX 100S from Fujifilm is a compact camera that rivals Panasonic’s full-frame, 45-megapixel S1R in size but surpasses it with a sensor that’s 70 percent larger and more than double the resolution. Alongside its increased capabilities, Fujifilm has enhanced its speed, incorporating features typically found in modern mirrorless cameras such as eye-detect autofocus and in-body stabilization. The real question is how it compares to recent models like the Sony A1 and Canon R5. To find out, I took it out for a test and also lent it to a pair of professional photographers who were interested in purchasing this particular model.

Compared to its predecessor, the GFX 100, which weighs a hefty 1,400 grams (just over 3 pounds), the GFX 100S is significantly smaller and lighter, coming in at 900 grams (just under 2 pounds), a reduction of 35 percent. It’s also two-thirds the height and slimmer in profile. The primary reason for this reduction is the removal of the vertical grip and accompanying controls.

Fujifilm has developed a new in-body image stabilizer (IBIS) for the GFX 100S that is much smaller than the one found in its predecessor. Despite the size reduction, it has managed to improve performance, providing 6 stops of shake reduction compared to the previous 5.5 stops. This enhancement is crucial as medium format camera sensors can be sensitive to hand shaking. With the IBIS activated, I was able to capture sharp shots at relatively low shutter speeds, even down to an eighth of a second or so.

The GFX 100S features a 3.2-inch rear touch display with a resolution of 2.36 million dots. The display can tilt down, up, and to the side, offering a high-resolution view and a range of adjustments. While it lacks a flip-out display, it’s worth noting that this camera is not primarily intended for vlogging or shooting selfies.

It comes equipped with dual high-speed SD card slots that can be used for backup or extra storage, a USB port for charging and data transfers, mic and headphone ports, and a micro HDMI port. The battery used is borrowed from the X-T4 and is not as large as the ones found in other GFX bodies. Nevertheless, it still delivers a reasonable 460 shots on a single charge. Although there is no option for a vertical battery grip like the GFX 50S, this tradeoff is justified considering the significant reduction in weight.

Fujifilm GFX 100S

Fujifilm has enormously improved the video features of its camera line-up over the last several years, and the GFX 100S model is certainly no exception. With a intelligent line-skipping setup that takes benefit of the full sensor width, it’s perhaps the most effective medium-format camera for video.
The Fujifilm GFX 100S is a 102MP medium format digital camera with an image stabilized BSI-CMOS sensor. This image stabilization is scored at up to 6.0 stops, and can operate in sync with in-lens stabilization to manage this overall performance. It offers a hybrid autofocus system with almost 100% coverage and a multi-shot mode for capturing 400MP images of static subjects. It shoot a DCI or UHD 4K video with internal shoot at up to 400Mbps or a option of 10-bit 4:2:2 or 12-bit Raw output over HDMI. The lightweight body is weather-sealed, has an OLED info displays on the top, and a fixed 3.69M-dot OLED viewfinder. Its dual-hinged 3.2″ LCD can tilt for both equally landscape and portrait photos. The camera has 2 SD card slots and ports for a mic, headphones and remote control. Photo: FUJIFILM

The full sensor width allows for a razor-fine detail of field and wonderfully smooth bokeh. The disadvantage is that it’s not quite as sharp as fully downsampled video, meaning you’re going to see some moire (rainbow patterns) and aliasing (jagged diagonal lines).
The video is a touch comfortable, but it is easy to operate in post regards to the 10-bit and RAW functions. The large sensor also offers it a special, IMAX-like top quality you may not find on any other digital camera. As with the photos, colors are precise with fine skin shades and tones thanks to Fujifilm’s newest color technology. It’s not intended to be used as a video camera, of course, but it’s good for periodic video use along with photographs.Fujifilm GFX 100SThe Fujifilm GFX 100S camera is also faster than almost all of its medium-format competitors. Most notably, it provides the best image quality accessible for photographers who need that and don’t mind the not so quick general performance. For $6,000, it’s really a steal for that kind of purchaser.
The Fujifilm GFX 100S camera is the most compact, the very least expensive solution to achieve image quality beyond what full-frame can at this time offer. You lose quite a few responsiveness and overall flexibility in return for that, but as an image-making tool the GFX is outstanding. It’s also a remarkably capable video camera but its more compact battery risks becoming more limiting than it is for stills capturing. Exceptional in the studio room and beyond.

Fujifilm GFX 100S specs:

Model name FUJIFILM GFX100S
Lens Mount FUJIFILM G mount
Image sensor 43.8mm×32.9mm Bayer array with primary color filter
Number of effective pixels 102 million pixels
Sensor Cleaning System Ultra Sonic Vibration
Image Processing Engine X-Processor 4
Storage media SD Card (-2GB) / SDHC Card (-32GB) / SDXC Card (-2TB) / UHS-I / UHS-II / Video Speed Class V90*1
File format of still image DCF Compliant with Design rule for Camera File system (DCF2.0)
JPEG Exif Ver.2.32 *2
RAW 16bit / 14bit RAW (RAF original format)
TIFF 8bit / 16bit RGB (In-camera Raw Conversion Only)
Number of recorded pixels [L]〈4:3〉 11648×8736 〈3:2〉 11648×7768 〈16:9〉 11648×6552 〈1:1〉 8736×8736
〈65:24〉 11648×4304 〈5:4〉 10928×8736 〈7:6〉 10192×8736
[M]〈4:3〉 8256×6192 〈3:2〉 8256×5504 〈16:9〉 8256×4640 〈1:1〉 6192×6192
〈65:24〉 8256×3048 〈5:4〉 7744×6192 〈7:6〉 7232×6192
[S]〈4:3〉 4000×3000 〈3:2〉 4000×2664 〈16:9〉 4000×2248 〈1:1〉 2992×2992
〈65:24〉 4000×1480 〈5:4〉 3744×3000 〈7:6〉 3504×3000
Sensitivity Still Image Standard Output: AUTO1 / AUTO2 / AUTO3 / ISO100~12800 (1/3 step)
Extended Output: ISO50 / ISO25600 / ISO51200 / ISO102400
Movie Standard Output: AUTO / ISO200~12800 (1/3 step)
Extended Output: ISO25600
Exposure control TTL 256-zone metering / Multi / Spot / Average / Center Weighted
Exposure mode P (Program AE) / A (Aperture Priority AE) / S (Shutter Speed Priority AE) / M (Manual Exposure)
Exposure compensation Still -5.0EV~+5.0EV 1/3EV step
Movie -2.0EV~+2.0EV 1/3EV step
Image stabilizer Mechanism Image sensor shift mechanism with 5-axis compensation
Compensation Effect 6.0 stops
*based on CIPA standard
*Pitch/yaw shake only
*With GF63mmF2.8 R WR lens mounted
Digital Image Stabilization Yes (movie mode only)
IS MODE BOOST Yes (movie mode only)
Shutter type Focal Plane Shutter
Shutter speed Mechanical shutter P mode: 4sec. to 1/4000sec. A mode: 30sec. to 1/4000sec.
S/M mode: 60min. to 1/4000sec. Bulb: up to 60min.
Electronic shutter P mode: 4sec. to 1/16000sec. A mode: 30sec. to 1/16000sec.
S/M mode: 60min. to 1/16000sec. Bulb: up to 60min.
*The Electronic Shutter may not be suitable for fast-moving objects or handheld shooting. Flash can not be used.
Mechanical + Electronic shutter P mode: 4sec. to 1/16000sec. A mode: 30sec. to 1/16000sec.
S/M mode: 60min. to 1/16000sec. Bulb: up to 60min.
*The Electronic Shutter may not be suitable for fast-moving objects or handheld shooting. Flash can not be used.
Electronic Front Curtain Shutter P mode: 4sec. to 1/4000sec. A mode: 30sec. to 1/4000sec.
S/M mode: 60min. to 1/4000sec. Bulb: up to 60min.
*Electronic front curtain shutter works until 1/1250sec.
*When using the electronic front curtain shutter, the continuous shooting supports CL only
Electronic Front Curtain Shutter + Electronic Shutter P mode: 4sec. to 1/16000sec. A mode: 30sec. to 1/16000sec.
S/M mode: 60min. to 1/16000sec. Bulb: up to 60min.
*Electronic front curtain shutter works until 1/1250sec, Mechanical shutter works until 1/4000sec.
*The Electronic Shutter may not be suitable for fast-moving objects or handheld shooting. Flash can not be used.
*When using the electronic front curtain shutter, the continuous shooting supports CL only
Movie DCI4K/4K: 1/4000sec. – 1/4sec. FHD: 1/4000sec. – 1/4sec.
*Cannot choose slower shutter speed than framerate with LongGOP recording.
Synchronized shutter speed for flash 1/125sec. or slower
Continuous shooting CH Electronic shutter 2.9fps (JPEG: 64 frames, Compressed RAW: 23frames, Lossless compressed RAW: 18 frames, Uncompressed RAW: 15 frames)
CH 5.0fps (JPEG: 42 frames, Compressed RAW: 16 frames, Lossless compressed RAW: 15 frames, Uncompressed RAW: 14 frames)
CL 2.0fps (JPEG: Endless, Compressed RAW: 45 frames, Lossless compressed RAW: 22 frames, Uncompressed RAW: 16 frames)
*Electronic Front Curtain Shutter support CL only.
*Recordable frames depends on recording media.
*Speed of continuous shooting depends on shooting environment and shooting frames.
Drive Mode AE Bracketing 2 frames / 3 frames / 5 frames / 7 frames / 9 frames
*by 1/3EV step, up to ±3EV steps
Filmsimulation bracketing Any 3 types of film simulation selectable
Dynamic Range Bracketing 100% / 200% / 400%
ISO sensitivity Bracketing ±1/3EV / ±2/3EV / ±1EV
White Balance Bracketing ±1 / ±2 / ±3
Focus Bracketing AUTO / MANUAL
Multiple Exposure Yes (Max. 9 frames) / Additive / Average / Bright / Dark
Pixel Shift Multi Shot Yes
Focus Mode Single AF / Continuous AF / MF
Type Intelligent Hybrid AF (TTL contrast AF / TTL phase detection AF)
Low-light Performance Contrast: -2.5EV / GF80mmF1.7 attached
Phase Detection: -5.5EV / GF80mmF1.7 attached
AF frame selection Single point AF: 13×9 / 25×17 (Changeable size of AF frame)
Zone AF: 3×3 / 5×5 / 7×7 from 117 areas on 13×9 grid
Wide/Tracking AF: Yes (AF-S: Wide / AF-C: Tracking)
All: Yes
Face/eye detection Yes
Flash Sync. Mode 1st Curtain / 2nd Curtain / AUTO FP (HSS)
When SHOE MOUNT FLASH is set
TTL (TTL AUTO / STANDARD / SLOW SYNC. ) / MANUAL / MULTI / OFF
Hot shoe Yes (Dedicated TTL Flash compatible)
Viewfinder EVF: 0.5 inch OLED Color Viewfinder, Approx. 3.69 million dots
Coverage of Viewing Area vs. Capturing Area: Approx. 100%
Eyepoint: Approx. 23mm (from the Rear End of the Camera’s Eyepiece)
Diopter Adjustment: -4~+2m-1
Magnification: 0.77x with 50mm Lens (35mm Equivalent) at infinity and Diopter set to -1.0m-1
Diagonal Angle of View: approx. 38° (Horizontal angle of view: approx. 30° )
Built-In Eye Sensor
LCD monitor 3.2 inch Tilt-Type(Three Direction) Touch Screen Color LCD Monitor
Aspect Ratio: 4:3
Dots: Approx. 2.36 million dots
Touch Screen Mode Shooting Mode AF, Focus Area, OFF, Double Tap Setting, Touch Function Setting, EVF Touch Screen Area Setting
Playback Mode Swipe, Pinch-in / Pinch-out, Double-tap, Drag
Sub LCD monitor 1.80 inch Monochrome LCD Monitor
Aspect Ratio: 4:3
Dots: 303×230-dot
Movie recording File format MOV:
HEVC/H.265, Linear PCM (Stereo sound 24bit / 48KHz sampling)
MPEG-4 AVC/H.264, Linear PCM (Stereo sound 24bit / 48KHz sampling)MP4:
MPEG-4 AVC/H.264, AAC
Movie compression All Intra / Long GOP
*All Intra can be used with following settings.
DCI4K/4K 29.97p/25p/24p/23.98p 400Mbps
Full HD(2048×1080) / Full HD(1920×1080) 59.94p/50p/29.97p/25p/24p/23.98p 200Mbps
File size
Frame rate
Bitrate
Recording time
[DCI4K(17:9)] 4096×2160 29.97p/25p/24p/23.98p 400Mbps/200Mbps/100Mbps Up to 120min.
[4K(16:9)] 3840×2160 29.97p/25p/24p/23.98p 400Mbps/200Mbps/100Mbps Up to 120min.
[Full HD(17:9)] 2048×1080 59.94p/50p/29.97p/25p/24p/23.98p 200Mbps/100Mbps/50Mbps Up to 120min.
[Full HD(16:9)] 1920×1080 59.94p/50p/29.97p/25p/24p/23.98p 200Mbps/100Mbps/50Mbps Up to 120min.
*For recording movies, use a SD memory card with UHS Speed Class 3 or higher.
*For recording movies in 400Mbps, use a SD memory card with Video Speed Class 60 or higher.
*Recording movies in 400Mbps can be done with DCI4K/4K 29.97p/25p/24p/23.98p.
*Recording time can become short depending on the temperature and/or shooting conditions.
Film simulation mode 19 modes (PROVIA/Standard, Velvia/Vivid, ASTIA/Soft, Classic Chrome, PRO Neg.Hi, PRO Neg.Std, Classic Neg., Nostalgic Neg., ETERNA/Cinema, ETERNA BLEACH BYPASS, ACROS
ACROS + Ye Filter, ACROS + R Filter, ACROS + G Filter, Black & White, Black & White + Ye Filter, Black & White + R Filter, Black & White + G Filter, Sepia
Monochromatic Color Yes
Grain Effect Roughness: STRONG, WEAK, OFF
Size: LARGE, SMALL
Color Chrome Effect STRONG, WEAK, OFF
Color chrome Blue STRONG, WEAK, OFF
Smooth Skin Effect STRONG, WEAK, OFF
Dynamic range setting Still AUTO / 100% / 200% / 400%
ISO restriction: DR100%: No limit, DR200%: ISO200 or more, DR400%: ISO400 or more
Movie 100% / 200% / 400%
ISO restriction: DR100%: No limit, DR200%: ISO400 or more, DR400%: ISO800 or more
White balance Auto White Priority / Auto / Ambience Priority
Custom Custom1 – 3
Color temperature selection 2500K~10000K
Preset Fine / Shade / Fluorescent Light-1 / Fluorescent Light-2 / Fluorescent Light-3 / Incandescent Light / Underwater
Clarity setting ±5 steps
Self-timer 10sec. / 2sec.
Interval timer shooting Yes (Setting : Interval, Number of shots, Starting time, Interval timer shooting exposure smoothing)
Wireless transmitter Standard IEEE802.11b/g/n (standard wireless protocol)
Encryption WEP / WPA / WPA2 mixed mode
Access mode Infrastructure
Bluetooth® Standartd Bluetooth Ver. 4.2 (Bluetooth low energy)
Operating frequency (Center frequency) 2402〜2480MHz
Terminal Digital interface USB Type-C (USB3.2 Gen1x1)
HDMI output HDMI Micro connector (Type D)
Others ø3.5mm, stereo mini connector (Microphone)
ø3.5mm, stereo mini connector (Headphone)
ø2.5mm, Remote Release Connector
Hot shoe
Synchronized terninal
Power supply NP-W235 Li-ion battery (included)
Battery life for still images Normal Mode: Approx. 460 frames
*When GF63mmF2.8 R WR is set
Actual battery life of movie capture*3 4K: Approx. 60min. (29.97p)
Full HD: Approx. 65min. (59.94p)
*Face detection is set to OFF
Continuance battery life of movie capture 4K: Approx. 95min. (29.97p)
Full HD: Approx. 110min. (59.94p)
*Face detection is set to OFF
Dimensions Width: 150.0mm
Height: 104.2mm
Depth: 87.2mm
(Minimum Depth) 44.0mm
Weight including battery and SD memory card: Approx. 900g
excluding battery and SD memory card: Approx. 819g
Operation Environment Operating Temperature -10°C – +40°C
Operating Humidity 10% – 80% (no condensation)
Starting up period Approx. 0.5sec.
Accessories included Li-ion battery NP-W235
AC power adapter AC-5VJ
Plug adapter
USB cable
Shoulder strap
Body cap
Hot shoe cover
Cable protector
Owner’s manual