Canon EOS R6 Mark II vs Nikon D90

This is a full comparison between the cameras Canon EOS R6 Mark II and Nikon D90. We compare them by looking at the categories you see below.

Manufacturing

Canon EOS R6 Mark II is manufacturered by Canon but Nikon D90 is from Nikon. Both Canon and Nikon are well known brands though.

Type of camera

Canon EOS R6 Mark II is a Mirrorless camera while Nikon D90 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Canon EOS R6 Mark II has a "FF"-sensor while Nikon D90 has a "DX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

** 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 R6 Mark II has a 24 MP (Megapixels) resolution while Nikon D90 has 12,3 MP. If we break down this in more detail this is the data behind the numbers:

Canon EOS R6 Mark II has a 97 % larger resolution than Nikon D90. 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 R6 Mark II has a larger ISO-range than Nikon D90. Canon EOS R6 Mark II has an ISO range that stretches from 100 to 102400 while Nikon D90 has 200 to 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 R6 Mark II 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 R6 Mark II
Lens compatibility chart for Nikon D90

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS R6 Mark II can shoot up to 40 pictures per seconds and Nikon D90 can shoot up to 4,5 pictures per seconds.

Ability to record movies

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

In this case, both Canon EOS R6 Mark II and Nikon D90 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 D90 weighs 703 gr (equal to 1,55 lb) which is 5% heavier than Canon EOS R6 Mark II and its 670 gr (or 1,48 lb).