Canon EOS Rebel T3 vs Canon EOS 5DS R

This is a full comparison between the cameras Canon EOS Rebel T3 and Canon EOS 5DS R. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Canon.

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Canon EOS Rebel T3 has a "APSC"-sensor while Canon EOS 5DS R 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 (Canon)

Resolution

Canon EOS Rebel T3 has a 12,2 MP (Megapixels) resolution while Canon EOS 5DS R has 51 MP. If we break down this in more detail this is the data behind the numbers:

Canon EOS 5DS R has a 314 % larger resolution than Canon EOS Rebel T3. 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

Both of these cameras offer the exact same ISO range. They both have 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 Canon EOS Rebel T3
Lens compatibility chart for Canon EOS 5DS R

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS Rebel T3 can shoot up to 3 pictures per seconds and Canon EOS 5DS R can shoot up to 5 pictures per seconds.

Ability to record movies

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

In this case, both Canon EOS Rebel T3 and Canon EOS 5DS R 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 5DS R weighs 930 gr (equal to 2,05 lb) which is 88% heavier than Canon EOS Rebel T3 and its 495 gr (or 1,09 lb).