Nikon D7100 vs Canon EOS 5D Mark III

This is a full comparison between the cameras Nikon D7100 and Canon EOS 5D Mark III. We compare them by looking at the categories you see below.

Manufacturing

Nikon D7100 is manufacturered by Nikon but Canon EOS 5D Mark III is from Canon. Both Nikon and Canon 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. Nikon D7100 has a "DX"-sensor while Canon EOS 5D Mark III has a "FF"-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 (Nikon)
Camera selection can affect the focal length (Canon)

Resolution

Nikon D7100 has a 24,1 MP (Megapixels) resolution while Canon EOS 5D Mark III has 22,3 MP. If we break down this in more detail this is the data behind the numbers:

Nikon D7100 has a 9 % larger resolution than Canon EOS 5D Mark III. 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 5D Mark III has a larger ISO-range than Nikon D7100. Canon EOS 5D Mark III has an ISO range that stretches from 100 to 25600 while Nikon D7100 has 100 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.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Nikon D7100
Lens compatibility chart for Canon EOS 5D Mark III

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D7100 can shoot up to 6 pictures per seconds and Canon EOS 5D Mark III can shoot up to 6 pictures per seconds.

Ability to record movies

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

In this case, both Nikon D7100 and Canon EOS 5D Mark III 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 5D Mark III weighs 950 gr (equal to 2,09 lb) which is 41% heavier than Nikon D7100 and its 675 gr (or 1,49 lb).