Sony Alpha a7R II vs Fujifilm GFX 100

This is a full comparison between the cameras Sony Alpha a7R II and Fujifilm GFX 100. We compare them by looking at the categories you see below.

Manufacturing

Sony Alpha a7R II is manufacturered by Sony but Fujifilm GFX 100 is from Fujifilm. Both Sony and Fujifilm are well known brands though.

Sony Alpha a7R II were released 2015 and Fujifilm GFX 100 was released 2019. That is a 4 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony Alpha a7R II 2015
Fujifilm GFX 100 2019

Type of camera

Both these cameras are Mirrorless cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Sony Alpha a7R II has a "Sony Full Frame"-sensor while Fujifilm GFX 100 has a "Fujifilm Medium Format"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Sony Alpha a7R II 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Fujifilm GFX 100 39.5 mm
Fujifilm Medium Format sensor
Crop factor/focal length multiplier by * 0.79

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:

Resolution

Sony Alpha a7R II has a 42 MP (Megapixels) resolution while Fujifilm GFX 100 has 102 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony Alpha a7R II 42 MP
42177408 pixels
7952 x 5304
Fujifilm GFX 100 102 MP
101756928 pixels
11648 x 8736

Fujifilm GFX 100 has a 141 % larger resolution than Sony Alpha a7R II. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Sony Alpha a7R II has a larger ISO-range than Fujifilm GFX 100. Sony Alpha a7R II has an ISO range that stretches from 100 to 25600 while Fujifilm GFX 100 has 10 to 12800.

Camera ISO Range
Sony Alpha a7R II 100-25600
Fujifilm GFX 100 10-12800

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony Alpha a7R II
Lens compatibility chart for Fujifilm GFX 100

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony Alpha a7R II can shoot up to 5 pictures per seconds and Fujifilm GFX 100 can shoot up to 5 pictures per seconds.

Camera FPS (Frames per second)
Sony Alpha a7R II 5
Fujifilm GFX 100 5

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

In this case, both Sony Alpha a7R II and Fujifilm GFX 100 can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Fujifilm GFX 100 weighs 1320 gr (equal to 2.91 lb) which is 111% heavier than Sony Alpha a7R II and its 625 gr (or 1.38 lb).

Camera Weight
Sony Alpha a7R II 625 gr
1.38 lb
Fujifilm GFX 100 1320 gr
2.91 lb

Sony Alpha a7R II vs Fujifilm GFX 100 Specs

Below you will find the complete and detailed technical specs for both Sony Alpha a7R II and Fujifilm GFX 100, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Sony Alpha a7R II
Fujifilm GFX 100
Name Sony Alpha a7R II Fujifilm GFX 100
Manufacturer Sony Fujifilm
Release Date and Price
Sony Alpha a7R II
Fujifilm GFX 100
Release Year 2015 2019
Release Date 2015-06-10 2019-05-23
MSRP 3199 USD 9999 USD
Buy it today
Camera Type
Sony Alpha a7R II
Fujifilm GFX 100
Camera Type Mirrorless Mirrorless
Sensor
Sony Alpha a7R II
Fujifilm GFX 100
Sensor Size Full Frame (approx 36 x 24 mm) Medium Format (approx 44 x 33 mm)
Sensor Type CMOS BSI-CMOS
Resolution 7952 x 5304 pixels 11648 x 8736 pixels
Megapixels 42 MP 102 MP
Image Processor Bionz X X-Processor 4
Image
Sony Alpha a7R II
Fujifilm GFX 100
ISO Range 100 - 25600 10 - 12800
White Balance Presets 10 7
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift (5-axis))
Yes
(Sensor-Shift (5-axis))
Image Stabilization CIPA Rating 4.5 stops 0 stops
Uncompressed format RAW RAW + TIFF
Optics & Focus
Sony Alpha a7R II
Fujifilm GFX 100
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Single
Continuous
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Focus Points 399 425
Lens Mount Sony E

See Compatible Lenses
Fujifilm G

See Compatible Lenses
Focal Length Multiplier Full frame
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Medium Format
0.79x multiplier
Example:
24 mm becomes 19 mm
50 mm becomes 40 mm
100 mm becomes 79 mm
200 mm becomes 158 mm
Screen & Viewfinder
Sony Alpha a7R II
Fujifilm GFX 100
Articulated LCD Tilting Tilting
Screen size 3 3.2
Screen dots 1228800 2360000
Touch screen No Yes
Screen type TFT LCD TFT LCD
Live view Yes Yes
Viewfinder Type Electronic Electronic (optional)
Viewfinder Coverage 100% 100%
Viewfinder Magnification 0.78x 0.68 (0.86 35mm equiv.)
Viewfinder Resolution N/A 5760000
Photography features
Sony Alpha a7R II
Fujifilm GFX 100
Frames per second 5 fps 5 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/4000 seconds
Built-in Flash No No
Built-in Flash Range N/A N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Spot
Average
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV steps)
Videography features
Sony Alpha a7R II
Fujifilm GFX 100
Video recording Yes Yes
Video format MPEG4
XAVC-S
AVCHD
MPEG4
H.264
H.265
Video resolution 1440 x 1080
1920 x 1080
3840 x 2160
1920 x 1080
3840 x 2160
4096 x 2160
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Sony Alpha a7R II
Fujifilm GFX 100
Memory Card Memory Stick Pro Duo
SD/SDHC
SD/SDHC
Connectivity
Sony Alpha a7R II
Fujifilm GFX 100
HDMI Output Yes Yes
Microphone Port Yes Yes
Headphone Port Yes Yes
Wireless Yes
Built-in (802.11b/g/n with NFC)
Yes
Built-in (802.11ac + Bluetooth)
Remote Control Yes (wired or via smartphone) Yes (via wired remote or smartphone)
GPS No No
Body & Dimensions
Sony Alpha a7R II
Fujifilm GFX 100
Enviromentally sealed Yes Yes
Battery Battery Pack Battery Pack
Battery Details NP-FW50 lithium-ion battery and charger
Built-in grip holds one or two NP-T125 batteries
Battery Life (CIPA) 290 shots 800 shots
Width 127 mm 156 mm
Height 96 mm 144 mm
Depth 60 mm 75 mm
Weight 625 gram 1320 gram