Canon EOS 1D X vs Canon EOS 1Ds Mark III

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

Canon EOS 1D X
Canon EOS 1Ds Mark III

Manufacturing

These cameras are both manufacturered by Canon.

Canon EOS 1D X were released 2011 and Canon EOS 1Ds Mark III was released 2007. That is a 4 years difference. In tech, this period of time can be of interest since technology is always improving etc.

Camera Manufacturer Released
Canon EOS 1D X Canon 2011
Canon EOS 1Ds Mark III Canon 2007

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

Both these cameras have the same sorts sensor (called "FF") which means that if you compare the cameras side by side the lenses will also have the same experienced focal length. Since both cameras have a Full frame sensor there will be no crop factor.

Camera Experienced focal length when using a lens with 50mm focal length (ex a common "50mm f/1.8")
Canon EOS 1D X 50 mm (a fullframe sensor does not have a crop factor / focal length multiplier)
Canon EOS 1Ds Mark III 50 mm (a fullframe sensor does not have a crop factor / focal length multiplier)

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

Resolution

Canon EOS 1D X has a 18,1 MP (Megapixels) resolution while Canon EOS 1Ds Mark III has 21,1 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 1D X 18,1 MP 17915904 5184 3456
Canon EOS 1Ds Mark III 21,1 MP 21026304 5616 3744

Canon EOS 1Ds Mark III has a 17 % larger resolution than Canon EOS 1D X. 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

Canon EOS 1D X has a larger ISO-range than Canon EOS 1Ds Mark III. Canon EOS 1D X has an ISO range that stretches from 100 to 51200 while Canon EOS 1Ds Mark III has 50 to 3200.

Camera ISO Range
Canon EOS 1D X 100-51200
Canon EOS 1Ds Mark III 50-3200

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 1D X
Lens compatibility chart for Canon EOS 1Ds Mark III

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definately be of interest. Canon EOS 1D X can shoot up to 12 pictures per seconds and Canon EOS 1Ds Mark III can shoot up to 5 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS 1D X 12
Canon EOS 1Ds Mark III 5

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 Canon EOS 1D X. Unfortunately Canon EOS 1Ds 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, carried around, for several hours at the time.

Canon EOS 1Ds Mark III weighs 1385 gr (equal to 3,05 lb) which is 3% heavier than Canon EOS 1D X and its 1340 gr (or 2,95 lb).

Camera Weight (in gram) Weight (in pounds)
Canon EOS 1D X 1340 gr 2,95 lb
Canon EOS 1Ds Mark III 1385 gr 3,05 lb