Canon EOS Rebel SL3 vs Canon EOS 1D X Mark II

This is a full comparison between the cameras Canon EOS Rebel SL3 and Canon EOS 1D X Mark II. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Canon.

Canon EOS Rebel SL3 were released 2019 and Canon EOS 1D X Mark II was released 2016. That is a 3 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Canon EOS Rebel SL3 2019
Canon EOS 1D X Mark II 2016

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Canon EOS Rebel SL3 has a "APSC"-sensor while Canon EOS 1D X Mark II has a "FF"-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 **
Canon EOS Rebel SL3 80 mm
Canon APS-C sensor
Crop factor/focal length multiplier by * 1.6
Canon EOS 1D X Mark II 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** 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:
Camera selection can affect the focal length (Canon)

Resolution

Canon EOS Rebel SL3 has a 24 MP (Megapixels) resolution while Canon EOS 1D X Mark II has 20 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Canon EOS Rebel SL3 24 MP
24000000 pixels
6000 x 4000
Canon EOS 1D X Mark II 20 MP
19961856 pixels
5472 x 3648

Canon EOS Rebel SL3 has a 20 % larger resolution than Canon EOS 1D X Mark 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

Canon EOS 1D X Mark II has a larger ISO-range than Canon EOS Rebel SL3. Canon EOS 1D X Mark II has an ISO range that stretches from 100 to 51200 while Canon EOS Rebel SL3 has 100 to 25600.

Camera ISO Range
Canon EOS Rebel SL3 100-25600
Canon EOS 1D X Mark II 100-51200

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 Canon EOS Rebel SL3
Lens compatibility chart for Canon EOS 1D X Mark II

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS Rebel SL3 can shoot up to 5 pictures per seconds and Canon EOS 1D X Mark II can shoot up to 16 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS Rebel SL3 5
Canon EOS 1D X Mark II 16

Ability to record movies

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

In this case, both Canon EOS Rebel SL3 and Canon EOS 1D X Mark 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.

Canon EOS 1D X Mark II weighs 1530 gr (equal to 3,37 lb) which is 241% heavier than Canon EOS Rebel SL3 and its 449 gr (or 0,99 lb).

Camera Weight
Canon EOS Rebel SL3 449 gr
0,99 lb
Canon EOS 1D X Mark II 1530 gr
3,37 lb