Canon EOS R vs Nikon D300s

This is a full comparison between the cameras Canon EOS R and Nikon D300s. We compare them by looking at the categories you see below.

Canon EOS R

Nikon D300s

Manufacturing

Canon EOS R is manufacturered by Canon but Nikon D300s is from Nikon. Both Canon and Nikon are well known brands though.

Canon EOS R were released 2018 and Nikon D300s was released 2009. That is a 9 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Canon EOS R	2018
Nikon D300s	2009

Type of camera

Canon EOS R is a Mirrorless camera while Nikon D300s is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Canon EOS R has a "Canon Full Frame"-sensor while Nikon D300s has a "Nikon DX"-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 R	50 mm Full-frame sensor No crop factor/focal length multiplier
Nikon D300s	75 mm Nikon DX sensor Crop factor/focal length multiplier by * 1.5

** 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)
Camera selection can affect the focal length (Nikon)

Resolution

Canon EOS R has a 30 MP (Megapixels) resolution while Nikon D300s has 12,3 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Canon EOS R	30 MP 30105600 pixels 6720 x 4480
Nikon D300s	12,3 MP 12212224 pixels 4288 x 2848

Canon EOS R has a 147 % larger resolution than Nikon D300s. 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 R has a larger ISO-range than Nikon D300s. Canon EOS R has an ISO range that stretches from 100 to 40000 while Nikon D300s has 200 to 6400.

Camera	ISO Range
Canon EOS R	100-40000
Nikon D300s	200-6400

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 R belongs to the Canon EOS R-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 R

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Canon EOS R
Lens compatibility chart for Nikon D300s

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS R can shoot up to 8 pictures per seconds and Nikon D300s can shoot up to 7 pictures per seconds.

Camera	FPS (Frames per second)
Canon EOS R	8
Nikon D300s	7

Ability to record movies

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

In this case, both Canon EOS R and Nikon D300s 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.

Nikon D300s weighs 938 gr (equal to 2.07 lb) which is 42% heavier than Canon EOS R and its 660 gr (or 1.46 lb).

Camera	Weight
Canon EOS R	660 gr 1.46 lb
Nikon D300s	938 gr 2.07 lb