Sony a9 III vs Fujifilm GFX 100 II

This is a full comparison between the cameras Sony a9 III and Fujifilm GFX 100 II. We compare them by looking at the categories you see below.

Sony a9 III

Fujifilm GFX 100 II

Manufacturing

Sony a9 III is manufacturered by Sony but Fujifilm GFX 100 II is from Fujifilm. Both Sony and Fujifilm are well known brands though.

These two camera models were both released 2023.

Camera	Released
Sony a9 III	2023
Fujifilm GFX 100 II	2023

Type of camera

Both these cameras are Mirrorless cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Sony a9 III has a "Sony Full Frame"-sensor while Fujifilm GFX 100 II 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 a9 III	50 mm Full-frame sensor No crop factor/focal length multiplier
Fujifilm GFX 100 II	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 a9 III has a 25,2 MP (Megapixels) resolution while Fujifilm GFX 100 II has 102 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Sony a9 III	25,2 MP 24000000 pixels 6000 x 4000
Fujifilm GFX 100 II	102 MP 101756928 pixels 11648 x 8736

Fujifilm GFX 100 II has a 324 % larger resolution than Sony a9 III. 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 a9 III has a larger ISO-range than Fujifilm GFX 100 II. Sony a9 III has an ISO range that stretches from 125 to 51200 while Fujifilm GFX 100 II has 100 to 12800.

Camera	ISO Range
Sony a9 III	125-51200
Fujifilm GFX 100 II	100-12800

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 a9 III
Lens compatibility chart for Fujifilm GFX 100 II

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a9 III can shoot up to 120 pictures per seconds and Fujifilm GFX 100 II can shoot up to 8 pictures per seconds.

Camera	FPS (Frames per second)
Sony a9 III	120
Fujifilm GFX 100 II	8

Ability to record movies

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

In this case, both Sony a9 III and Fujifilm GFX 100 II 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 II weighs 1030 gr (equal to 2.27 lb) which is 67% heavier than Sony a9 III and its 617 gr (or 1.36 lb).

Camera	Weight
Sony a9 III	617 gr 1.36 lb
Fujifilm GFX 100 II	1030 gr 2.27 lb