Canon EOS 5D Mark III vs Canon EOS 850D

This is a full comparison between the cameras Canon EOS 5D Mark III and Canon EOS 850D. We compare them by looking at the categories you see below.

Canon EOS 5D Mark III
Canon EOS 850D

Manufacturing

These cameras are both manufacturered by Canon.

Canon EOS 5D Mark III were released 2012 and Canon EOS 850D was released 2020. That is a 8 years difference. In tech, this period of time can be of interest since technology is always improving etc.

Camera Manufacturer Released
Canon EOS 5D Mark III Canon 2012
Canon EOS 850D Canon 2020

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Canon EOS 5D Mark III has a "FF"-sensor while Canon EOS 850D has a "APSC"-sensor, and their difference in sensors will also effect the crop factor and experience focal length. See the table below.

Camera Experienced focal length when using a lens with 50mm focal length (ex a common "50mm f/1.8")
Canon EOS 5D Mark III 50 mm (a fullframe sensor does not have a crop factor / focal length multiplier)
Canon EOS 850D 80 mm (a Canon APS-C sensor have a crop factor / focal length multiplier by * 1.6)

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Canon)

Resolution

Canon EOS 5D Mark III has a 22,3 MP (Megapixels) resolution while Canon EOS 850D has 24 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels Pixel (total) Pixels (width) Pixels (height)
Canon EOS 5D Mark III 22,3 MP 22118400 5760 3840
Canon EOS 850D 24 MP 24000000 6000 4000

Canon EOS 850D 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, afterwards while editing the pictures, if needed that is.

ISO range

Both of these cameras offers the exact same ISO range. They both have 100 to 25600.

Camera ISO Range
Canon EOS 5D Mark III 100-25600
Canon EOS 850D 100-25600

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that supports autofocus, does not have a autofocus motor of their own but this wont cause any problems with these two cameras.

Lens compatibility chart for Canon EOS 5D Mark III
Lens compatibility chart for Canon EOS 850D

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definately be of interest. Canon EOS 5D Mark III can shoot up to 6 pictures per seconds and Canon EOS 850D can shoot up to 7,5 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS 5D Mark III 6
Canon EOS 850D 7,5

Ability to record movies

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

In this case, both Canon EOS 5D Mark III and Canon EOS 850D can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, carried around, for several hours at the time.

Canon EOS 5D Mark III weighs 950 gr (equal to 2,09 lb) which is 84% heavier than Canon EOS 850D and its 515 gr (or 1,14 lb).

Camera Weight (in gram) Weight (in pounds)
Canon EOS 5D Mark III 950 gr 2,09 lb
Canon EOS 850D 515 gr 1,14 lb