Canon EOS M vs Canon EOS 5DS R

This is a full comparison between the cameras Canon EOS M and Canon EOS 5DS R. We compare them by looking at the categories you see below.

Canon EOS M

Canon EOS 5DS R

Manufacturing

These cameras are both manufactured by Canon.

Canon EOS M were released 2012 and Canon EOS 5DS R was released 2015. That is a 3 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Canon EOS M	2012
Canon EOS 5DS R	2015

Type of camera

Canon EOS M is a Mirrorless camera while Canon EOS 5DS R is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Canon EOS M has a "Canon APS-C"-sensor while Canon EOS 5DS R has a "Canon Full Frame"-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 M	80 mm Canon APS-C sensor Crop factor/focal length multiplier by * 1.6
Canon EOS 5DS R	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 M has a 18 MP (Megapixels) resolution while Canon EOS 5DS R has 51 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Canon EOS M	18 MP 17915904 pixels 5184 x 3456
Canon EOS 5DS R	51 MP 50320896 pixels 8688 x 5792

Canon EOS 5DS R has a 181 % larger resolution than Canon EOS M. 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 M has a larger ISO-range than Canon EOS 5DS R. Canon EOS M has an ISO range that stretches from 100 to 12800 while Canon EOS 5DS R has 100 to 6400.

Camera	ISO Range
Canon EOS M	100-12800
Canon EOS 5DS R	100-6400

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.

Worth mentioning is that Canon EOS M belongs to the Canon EOS M-system and needs an adapter to work with Canons EF, EF-S, MP-E, and TS-E lenses. You can read more about this adapter here:
Canon Lens Mount Adapter EF-EOS M

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Canon EOS M
Lens compatibility chart for Canon EOS 5DS R

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS M can shoot up to 4,3 pictures per seconds and Canon EOS 5DS R can shoot up to 5 pictures per seconds.

Camera	FPS (Frames per second)
Canon EOS M	4,3
Canon EOS 5DS R	5

Ability to record movies

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

In this case, both Canon EOS M and Canon EOS 5DS R 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 5DS R weighs 930 gr (equal to 2.05 lb) which is 212% heavier than Canon EOS M and its 298 gr (or 0.66 lb).

Camera	Weight
Canon EOS M	298 gr 0.66 lb
Canon EOS 5DS R	930 gr 2.05 lb