Canon EOS 550D vs Canon EOS Ra

This is a full comparison between the cameras Canon EOS 550D and Canon EOS Ra. We compare them by looking at the categories you see below.

Canon EOS 550D
Canon EOS Ra

Manufacturing

These cameras are both manufacturered by Canon.

Canon EOS 550D were released 2010 and Canon EOS Ra was released 2018. 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 550D Canon 2010
Canon EOS Ra Canon 2018

Type of camera

Canon EOS 550D is a DSLR camera while Canon EOS Ra is a Mirrorless camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Canon EOS 550D has a "APSC"-sensor while Canon EOS Ra has a "FF"-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 550D 80 mm (a Canon APS-C sensor have a crop factor / focal length multiplier by * 1.6)
Canon EOS Ra 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 550D has a 18,7 MP (Megapixels) resolution while Canon EOS Ra has 30 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 550D 18,7 MP 17915904 5184 3456
Canon EOS Ra 30 MP 30105600 6720 4480

Canon EOS Ra has a 68 % larger resolution than Canon EOS 550D. 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 Ra has a larger ISO-range than Canon EOS 550D. Canon EOS Ra has an ISO range that stretches from 100 to 40000 while Canon EOS 550D has 100 to 12800.

Camera ISO Range
Canon EOS 550D 100-12800
Canon EOS Ra 100-40000

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.

Worth mentioning is that Canon EOS Ra belong to the Canon EOS R-system and need an adapter to work with Canons EF, EF-S, MP-E and TS-E lenses. You can read more about this adapter here:
Read more about Canon Lens Mount Adapter EF-EOS R

Here is a complete overview of which lenses that work with each camera:
Lens compatibility chart for Canon EOS 550D
Lens compatibility chart for Canon EOS Ra

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definately be of interest. Canon EOS 550D can shoot up to 3,7 pictures per seconds and Canon EOS Ra can shoot up to 8 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS 550D 3,7
Canon EOS Ra 8

Ability to record movies

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

In this case, both Canon EOS 550D and Canon EOS Ra 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 Ra weighs 660 gr (equal to 1,46 lb) which is 29% heavier than Canon EOS 550D and its 510 gr (or 1,12 lb).

Camera Weight (in gram) Weight (in pounds)
Canon EOS 550D 510 gr 1,12 lb
Canon EOS Ra 660 gr 1,46 lb