Sony a7S II vs Canon EOS 1D Mark III

This is a full comparison between the cameras Sony a7S II and Canon EOS 1D Mark III. We compare them by looking at the categories you see below.

Sony a7S II

Canon EOS 1D Mark III

Manufacturing

Sony a7S II is manufacturered by Sony but Canon EOS 1D Mark III is from Canon. Both Sony and Canon are well known brands though.

Sony a7S II were released 2015 and Canon EOS 1D Mark III was released 2007. That is a 8 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Sony a7S II	2015
Canon EOS 1D Mark III	2007

Type of camera

Sony a7S II is a Mirrorless camera while Canon EOS 1D Mark III is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Sony a7S II has a "Sony Full Frame"-sensor while Canon EOS 1D Mark III has a "Canon APS-H"-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 **
Sony a7S II	50 mm Full-frame sensor No crop factor/focal length multiplier
Canon EOS 1D Mark III	65 mm Canon APS-H sensor Crop factor/focal length multiplier by * 1.3

** 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 (Sony)
Camera selection can affect the focal length (Canon)

Resolution

Sony a7S II has a 12 MP (Megapixels) resolution while Canon EOS 1D Mark III has 10,1 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Sony a7S II	12 MP 12007680 pixels 4240 x 2832
Canon EOS 1D Mark III	10,1 MP 10077696 pixels 3888 x 2592

Sony a7S II has a 19 % larger resolution than Canon EOS 1D 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

Sony a7S II has a larger ISO-range than Canon EOS 1D Mark III. Sony a7S II has an ISO range that stretches from 100 to 102400 while Canon EOS 1D Mark III has 50 to 6400.

Camera	ISO Range
Sony a7S II	100-102400
Canon EOS 1D Mark III	50-6400

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 Sony a7S II
Lens compatibility chart for Canon EOS 1D Mark III

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a7S II can shoot up to 5 pictures per seconds and Canon EOS 1D Mark III can shoot up to 10 pictures per seconds.

Camera	FPS (Frames per second)
Sony a7S II	5
Canon EOS 1D Mark III	10

Ability to record movies

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

When comparing these two cameras there is only one of them that can shoot movies and that is Sony a7S II. Unfortunately Canon EOS 1D Mark III does not support recording movies and movie clips.

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 1D Mark III weighs 1155 gr (equal to 2.55 lb) which is 84% heavier than Sony a7S II and its 627 gr (or 1.38 lb).

Camera	Weight
Sony a7S II	627 gr 1.38 lb
Canon EOS 1D Mark III	1155 gr 2.55 lb