Fujifilm GFX 100S vs Canon EOS 1D Mark III

This is a full comparison between the cameras Fujifilm GFX 100S and Canon EOS 1D Mark III. We compare them by looking at the categories you see below.

Fujifilm GFX 100S

Canon EOS 1D Mark III

Manufacturing

Fujifilm GFX 100S is manufacturered by Fujifilm but Canon EOS 1D Mark III is from Canon. Both Fujifilm and Canon are well known brands though.

Fujifilm GFX 100S were released 2021 and Canon EOS 1D Mark III was released 2007. That is a 14 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Fujifilm GFX 100S	2021
Canon EOS 1D Mark III	2007

Type of camera

Fujifilm GFX 100S is a Mirrorless camera while Canon EOS 1D Mark III is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Fujifilm GFX 100S has a "Fujifilm Medium Format"-sensor while Canon EOS 1D Mark III has a "Canon APS-H"-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 **
Fujifilm GFX 100S	39.5 mm Fujifilm Medium Format sensor Crop factor/focal length multiplier by * 0.79
Canon EOS 1D Mark III	65 mm Canon APS-H sensor Crop factor/focal length multiplier by * 1.3

** 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

Fujifilm GFX 100S has a 102 MP (Megapixels) resolution while Canon EOS 1D Mark III has 10,1 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Fujifilm GFX 100S	102 MP 101756928 pixels 11648 x 8736
Canon EOS 1D Mark III	10,1 MP 10077696 pixels 3888 x 2592

Fujifilm GFX 100S has a 910 % larger resolution than Canon EOS 1D Mark 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

Fujifilm GFX 100S has a larger ISO-range than Canon EOS 1D Mark III. Fujifilm GFX 100S has an ISO range that stretches from 100 to 12800 while Canon EOS 1D Mark III has 50 to 6400.

Camera	ISO Range
Fujifilm GFX 100S	100-12800
Canon EOS 1D Mark III	50-6400

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 Fujifilm GFX 100S
Lens compatibility chart for Canon EOS 1D Mark III

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Fujifilm GFX 100S can shoot up to 5 pictures per seconds and Canon EOS 1D Mark III can shoot up to 10 pictures per seconds.

Camera	FPS (Frames per second)
Fujifilm GFX 100S	5
Canon EOS 1D Mark III	10

Ability to record movies

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

When comparing these two cameras there is only one of them that can shoot movies and that is Fujifilm GFX 100S. Unfortunately Canon EOS 1D Mark III does not support recording movies and movie clips.

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.

Canon EOS 1D Mark III weighs 1155 gr (equal to 2.55 lb) which is 28% heavier than Fujifilm GFX 100S and its 900 gr (or 1.98 lb).

Camera	Weight
Fujifilm GFX 100S	900 gr 1.98 lb
Canon EOS 1D Mark III	1155 gr 2.55 lb