Canon EOS 20D vs Nikon D40

This is a full comparison between the cameras Canon EOS 20D and Nikon D40. We compare them by looking at the categories you see below.

Manufacturing

Canon EOS 20D is manufacturered by Canon but Nikon D40 is from Nikon. Both Canon and Nikon are well known brands though.

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Canon EOS 20D has a "APSC"-sensor while Nikon D40 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 20D has a 8,2 MP (Megapixels) resolution while Nikon D40 has 6 MP. If we break down this in more detail this is the data behind the numbers:

Canon EOS 20D has a 36 % larger resolution than Nikon D40. 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 20D has a larger ISO-range than Nikon D40. Canon EOS 20D has an ISO range that stretches from 100 to 3200 while Nikon D40 has 200 to 3200.

Autofocus and lens compatibility

There is a big difference between these two cameras. Canon EOS 20D has a built-in autofocus motor but Nikon D40 does not. If you want to be able to use autofocus on Nikon D40 there is a need for having an autofocus motor inside the lens. We really encourage you to look closely at our lens compatibility charts at the links below.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Canon EOS 20D
Lens compatibility chart for Nikon D40

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS 20D can shoot up to 5 pictures per seconds and Nikon D40 can shoot up to 2,5 pictures per seconds.

Ability to record movies

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

Though, neither Canon EOS 20D or Nikon D40 can shoot movies so if that is a functionality that you are really looking for you should look elsewhere.

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 20D weighs 770 gr (equal to 1,7 lb) which is 48% heavier than Nikon D40 and its 522 gr (or 1,15 lb).