Canon EOS 20D Astrophotography vs Canon EOS Rebel SL2
This is a full comparison between the cameras Canon EOS 20D Astrophotography and Canon EOS Rebel SL2. We compare them by looking at the categories you see below.
Manufacturing
These cameras are both manufacturered by Canon.
Canon EOS 20D Astrophotography were released 2005 and Canon EOS Rebel SL2 was released 2017. That is a 12 years difference. In tech, this period of time can be of interest since technology is always improving etc.| Camera | Manufacturer | Released |
| Canon EOS 20D Astrophotography | Canon | 2005 |
| Canon EOS Rebel SL2 | Canon | 2017 |
Type of camera
Both these cameras are DSLR cameras. No difference there.
Sensors / crop factor
Both these cameras have the same sorts sensor (called "APSC") which means that if you compare the cameras side by side the lenses will also have the same experienced focal length. Neither of the cameras have a Full frame sensor which means that you will get a "crop factor" where the cameras sensor size effect the focal length with a multiplier.
| Camera | Experienced focal length when using a lens with 50mm focal length (ex a common "50mm f/1.8") | |
| Canon EOS 20D Astrophotography | 80 mm | (a Canon APS-C sensor have a crop factor / focal length multiplier by * 1.6) |
| Canon EOS Rebel SL2 | 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 20D Astrophotography has a 8,2 MP (Megapixels) resolution while Canon EOS Rebel SL2 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 20D Astrophotography | 8,2 MP | 8185344 | 3504 | 2336 |
| Canon EOS Rebel SL2 | 24 MP | 24000000 | 6000 | 4000 |
Canon EOS Rebel SL2 has a 193 % larger resolution than Canon EOS 20D Astrophotography. 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 Rebel SL2 has a larger ISO-range than Canon EOS 20D Astrophotography. Canon EOS Rebel SL2 has an ISO range that stretches from 100 to 25600 while Canon EOS 20D Astrophotography has 100 to 3200.
| Camera | ISO Range |
| Canon EOS 20D Astrophotography | 100-3200 |
| Canon EOS Rebel SL2 | 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.
Here is a complete overview of which lenses that work with each camera:
Lens compatibility chart for Canon EOS 20D Astrophotography
Lens compatibility chart for Canon EOS Rebel SL2
Pictures per second
Depending on what you are shooting the FPS, or frames/pictures per second, can definately be of interest. Canon EOS 20D Astrophotography can shoot up to 5 pictures per seconds and Canon EOS Rebel SL2 can shoot up to 5 pictures per seconds.
| Camera | FPS (Frames per second) |
| Canon EOS 20D Astrophotography | 5 |
| Canon EOS Rebel SL2 | 5 |
Ability to record movies
It is becoming more and more popular to record movies with digital cameras.
It is only one of these two cameras that support recording of movies and movie clips and that is Canon EOS Rebel SL2. Sadly, the Canon EOS 20D Astrophotography does not support this.
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 20D Astrophotography weighs 770 gr (equal to 1,7 lb) which is 70% heavier than Canon EOS Rebel SL2 and its 453 gr (or 1 lb).
| Camera | Weight (in gram) | Weight (in pounds) |
| Canon EOS 20D Astrophotography | 770 gr | 1,7 lb |
| Canon EOS Rebel SL2 | 453 gr | 1 lb |
