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Fujifilm GFX 100S vs Sony A9

Portability
55
Imaging
95
Features
85
Overall
91
Fujifilm GFX 100S front
 
Sony Alpha A9 front
Portability
65
Imaging
74
Features
93
Overall
81

Fujifilm GFX 100S vs Sony A9 Key Specs

Fujifilm GFX 100S
(Full Review)
  • 102MP - Medium format Sensor
  • 3.2" Tilting Screen
  • ISO 100 - 12800 (Raise to 102400)
  • Sensor based 5-axis Image Stabilization
  • 4096 x 2160 video
  • Fujifilm G Mount
  • 900g - 150 x 104 x 87mm
  • Revealed January 2021
Sony A9
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 51200 (Push to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 673g - 127 x 96 x 63mm
  • Revealed April 2017
  • Newer Model is Sony A9 II
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Fujifilm GFX 100S vs Sony A9 Overview

In this article, we are contrasting the Fujifilm GFX 100S vs Sony A9, both Pro Mirrorless cameras by companies FujiFilm and Sony. There is a considerable difference among the image resolutions of the Fujifilm GFX 100S (102MP) and A9 (24MP) and the Fujifilm GFX 100S (Medium format) and A9 (Full frame) use totally different sensor sizes.

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The Fujifilm GFX 100S was launched 3 years after the A9 which is a fairly large difference as far as camera tech is concerned. Both of these cameras offer the identical body type (SLR-style mirrorless).

Before delving straight into a comprehensive comparison, below is a short highlight of how the Fujifilm GFX 100S matches up vs the A9 in terms of portability, imaging, features and an overall mark.

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Reasons to pick Fujifilm GFX 100S over the Sony A9

 Fujifilm GFX 100S A9 
RevealedJanuary 2021April 2017Newer by 46 months
Display sizing3.2"3"Larger display (+0.2")
Display resolution2360k1440kCrisper display (+920k dot)

Reasons to pick Sony A9 over the Fujifilm GFX 100S

 A9 Fujifilm GFX 100S 

Common features in the Fujifilm GFX 100S and Sony A9

 Fujifilm GFX 100S A9 
Manual focus Very precise focusing
Display typeTiltingTiltingTilting display
Selfie screen Neither includes selfie screen
Touch friendly display Easily navigate

Fujifilm GFX 100S vs Sony A9 Physical Comparison

If you are aiming to travel with your camera regularly, you are going to need to consider its weight and dimensions. The Fujifilm GFX 100S features outer dimensions of 150mm x 104mm x 87mm (5.9" x 4.1" x 3.4") with a weight of 900 grams (1.98 lbs) and the Sony A9 has dimensions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") and a weight of 673 grams (1.48 lbs).

See the Fujifilm GFX 100S vs Sony A9 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will change based on the lens you select at that time. The following is the front view dimensions comparison of the Fujifilm GFX 100S against the A9.

Fujifilm GFX 100S vs Sony A9 size comparison

Looking at size and weight, the portability rating of the Fujifilm GFX 100S and A9 is 55 and 65 respectively.

Fujifilm GFX 100S vs Sony A9 top view buttons comparison

Fujifilm GFX 100S vs Sony A9 Sensor Comparison

In many cases, it can be hard to visualise the difference in sensor dimensions just by checking out a spec sheet. The image below will help give you a greater sense of the sensor sizes in the Fujifilm GFX 100S and A9.

Clearly, both cameras enjoy different megapixels and different sensor dimensions. The Fujifilm GFX 100S featuring a larger sensor will make shooting shallower depth of field easier and the Fujifilm GFX 100S will show greater detail utilizing its extra 78MP. Greater resolution will also help you crop photos far more aggressively. The more modern Fujifilm GFX 100S is going to have a benefit with regard to sensor innovation.

Fujifilm GFX 100S vs Sony A9 sensor size comparison

Fujifilm GFX 100S vs Sony A9 Screen and ViewFinder

Fujifilm GFX 100S vs Sony A9 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Fujifilm GFX 100S
Portrait photography with Sony A9
97
focusing manually
megapixel count high (102MP)
sensor size is great (Medium format)
comes with face detection focus
exports RAW formats
84
you can focus manually
decent MP (24 megapixels)
great sensor size (Full frame)
features face detection autofocus
supports RAW files
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Street Comparison

Fujifilm GFX 100S Street photography advice
Sony A9 Street photography advice
74
screen tilts
built in image stabilization (Sensor based 5-axis)
sensor size is great (Medium format)
exports RAW formats
boasts focus via touch
weather proofing
heavier than competition in class (900 grams)
79
screen tilts up and down
has image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
supports RAW files
provides touch to focus
environment sealing
good high ISO (51,200)
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Sports Comparison

Fujifilm GFX 100S as a Sports photography camera
Sony A9 as a Sports photography camera
91
quiet shooting (1/16,000s)
built in image stabilization (Sensor based 5-axis)
megapixel count high (102 megapixels)
sensor size is great (Medium format)
comes with tracking autofocus
weather proofing
sensor has phase detect auto focus
slow continuous shooting (5.0 frames per second)
87
maximum shutter speed is high (1/8,000s)
silent shooting (1/32,000s)
high fps (20.0 fps)
has image stabilization (Sensor based 5-axis)
decent MP (24 megapixels)
great sensor size (Full frame)
features tracking autofocus
environment sealing
better than average battery pack (650 per charge)
comes with phase detect autofocus
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Travel Comparison

Fujifilm GFX 100S Travel photography factors
Sony A9 Travel photography factors
67
weather proofing
connects via bluetooth
boasts focus via touch
megapixel count high (102 megapixels)
heavier than competition in class (900g)
doesn't feature selfie friendly display
74
better than average battery pack (650 shots)
environment sealing
has bluetooth
provides touch to focus
decent MP (24MP)
does not contain selfie friendly screen
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Landscape Comparison

Landscape photography with Fujifilm GFX 100S
Landscape photography with Sony A9
93
focusing manually
interchangeable lenses (Fujifilm G mount)
screen size is good (3.2 inches)
built in image stabilization (Sensor based 5-axis)
megapixel count high (102 megapixels)
sensor size is great (Medium format)
exports RAW formats
weather proofing
has dual storage slots
86
you can focus manually
change lenses (Sony E mount)
screen size is good (3 inches)
has image stabilization (Sensor based 5-axis)
decent MP (24 megapixels)
great sensor size (Full frame)
good high ISO (51,200)
supports RAW files
environment sealing
better than average battery pack (650 CIPA)
has dual storage slots
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Vlogging Comparison

Fujifilm GFX 100S Vlogging highlights
Sony A9 Vlogging highlights
34
touchscreen enabled
built in image stabilization (Sensor based 5-axis)
comes with face detection focus
high res video (4096 x 2160 pxls)
includes external mic jack
doesn't feature selfie friendly display
heavier than competition in class (900 grams)
37
touchscreen capability
has image stabilization (Sensor based 5-axis)
features face detection autofocus
high quality video (3840 x 2160 resolution)
does have external mic jack
does not contain selfie friendly screen
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Fujifilm GFX 100S vs Sony A9 Specifications

Detailed spec comparison table for Fujifilm GFX 100S and Sony A9
 Fujifilm GFX 100SSony Alpha A9
General Information
Manufacturer FujiFilm Sony
Model Fujifilm GFX 100S Sony Alpha A9
Type Pro Mirrorless Pro Mirrorless
Revealed 2021-01-27 2017-04-19
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Chip - BIONZ X
Sensor type BSI-CMOS BSI-CMOS
Sensor size Medium format Full frame
Sensor dimensions 44 x 33mm 35.6 x 23.8mm
Sensor surface area 1,452.0mm² 847.3mm²
Sensor resolution 102MP 24MP
Anti aliasing filter
Aspect ratio 1:1, 5:4, 4:3, 3:2 and 16:9 3:2 and 16:9
Max resolution 11648 x 8736 6000 x 4000
Max native ISO 12800 51200
Max enhanced ISO 102400 204800
Lowest native ISO 100 100
RAW data
Lowest enhanced ISO 50 50
Autofocusing
Focus manually
Touch to focus
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points 425 693
Lens
Lens mount Fujifilm G Sony E
Amount of lenses 13 121
Focal length multiplier 0.8 1
Screen
Screen type Tilting Tilting
Screen size 3.2 inches 3 inches
Screen resolution 2,360 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 3,690 thousand dot 3,686 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.77x 0.78x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/4000 secs 1/8000 secs
Max silent shutter speed 1/16000 secs 1/32000 secs
Continuous shutter speed 5.0 frames/s 20.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash range no built-in flash no built-in flash
Flash settings no built-in flash Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
External flash
AE bracketing
White balance bracketing
Max flash sync 1/125 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 4096 x 2160 @ 30p / 400 Mbps, MOV, H.265, Linear PCM4096 x 2160 @ 25p / 400 Mbps, MOV, H.265, Linear PCM4096 x 2160 @ 24p / 400 Mbps, MOV, H.265, Linear PCM4096 x 2160 @ 23.98p / 400 Mbps, MOV, H.265, Linear PCM3840 x 2160 @ 30p / 400 Mbps, MOV, H.265, Linear PCM3840 x 2160 @ 25p / 400 Mbps, MOV, H.265, Linear PCM3840 x 2160 @ 24p / 400 Mbps, MOV, H.265, Linear PCM3840 x 2160 @ 23.98p / 400 Mbps, MOV, H.265, Linear PCM1920 x 1080 @ 60p / 200 Mbps, MOV, H.265, Linear PCM1920 x 1080 @ 50p / 200 Mbps, MOV, H.265, Linear PCM1920 x 1080 @ 30p / 200 Mbps, MOV, H.265, Linear PCM1920 x 1080 @ 25p / 200 Mbps, MOV, H.265, Linear PCM1920 x 1080 @ 24p / 200 Mbps, MOV, H.265, Linear PCM1920 x 1080 @ 23.98p / 200 Mbps, MOV, H.265, Linear PCM -
Max video resolution 4096x2160 3840x2160
Video data format MPEG-4, H.264, H.265 MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.2 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 900 grams (1.98 lb) 673 grams (1.48 lb)
Dimensions 150 x 104 x 87mm (5.9" x 4.1" x 3.4") 127 x 96 x 63mm (5.0" x 3.8" x 2.5")
DXO scores
DXO Overall score not tested 92
DXO Color Depth score not tested 24.9
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 3517
Other
Battery life 460 images 650 images
Battery format Battery Pack Battery Pack
Battery model NP-W235 NP-FZ100
Self timer Yes Yes (2, 5, 10 secs + continuous)
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC cards (UHS-II supported) Dual SD/SDHC/SDXC slots (UHS-II compatible)
Storage slots 2 2
Cost at release $5,999 $4,498