Canon EOS R vs Canon EOS 20D

This is a full comparison between the cameras Canon EOS R and Canon EOS 20D. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Canon.

Type of camera

Canon EOS R is a Mirrorless camera while Canon EOS 20D is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Canon EOS R has a "Canon Full Frame"-sensor while Canon EOS 20D has a "Canon APS-C"-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 R has a 30 MP (Megapixels) resolution while Canon EOS 20D has 8,2 MP. If we break down this in more detail this is the data behind the numbers:

Canon EOS R has a 268 % larger resolution than Canon EOS 20D. 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

Canon EOS R has a larger ISO-range than Canon EOS 20D. Canon EOS R has an ISO range that stretches from 100 to 40000 while Canon EOS 20D has 100 to 3200.

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.

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

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Canon EOS R
Lens compatibility chart for Canon EOS 20D

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS R can shoot up to 8 pictures per seconds and Canon EOS 20D 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.

When comparing these two cameras there is only one of them that can shoot movies and that is Canon EOS R. Unfortunately Canon EOS 20D 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 20D weighs 770 gr (equal to 1.7 lb) which is 17% heavier than Canon EOS R and its 660 gr (or 1.46 lb).

Canon EOS R vs Canon EOS 20D Specs

Below you will find the complete and detailed technical specs for both Canon EOS R and Canon EOS 20D, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product	Canon EOS R	Canon EOS 20D
Name	Canon EOS R	Canon EOS 20D
Manufacturer	Canon	Canon
Release Date and Price	Canon EOS R	Canon EOS 20D
Release Year	2018	2004
Release Date	2018-09-05	2004-08-19
MSRP	2299 USD	1499 USD
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Camera Type	Canon EOS R	Canon EOS 20D
Camera Type	Mirrorless	DSLR
Sensor	Canon EOS R	Canon EOS 20D
Sensor Size	Full Frame (approx 36 x 24 mm)	APS-C (approx 22.3 x 14.9 mm)
Sensor Type	CMOS	CMOS
Resolution	6720 x 4480 pixels	3504 x 2336 pixels
Megapixels	30 MP	8,2 MP
Image Processor	DIGIC 8	DIGIC 2
Image	Canon EOS R	Canon EOS 20D
ISO Range	100 - 40000	100 - 3200
White Balance Presets	6	6
Custom White Balance	Yes	Yes
Image Stabilization	No	No
Image Stabilization CIPA Rating	0 stops	0 stops
Uncompressed format	RAW	RAW
Optics & Focus	Canon EOS R	Canon EOS 20D
Autofocus Motor	Yes	Yes
Autofocus	Contract Detect (sensor) Phase Detect Multi Area Center Selective Single Point Tracking Single Continuous Touch Face Detection LiveView	Phase Detect Multi Area Selective Single Point Single Continuous
Focus Points	5655	9
Lens Mount	Canon RF See Compatible Lenses	Canon EF Canon EF-S See Compatible Lenses
Focal Length Multiplier	Full frame No multiplier Example: 24 mm remains 24 mm 50 mm remains 50 mm 100 mm remains 100 mm 200 mm remains 200 mm	APS-C Sensor 1.6x multiplier Example: 24 mm becomes 38 mm 50 mm becomes 80 mm 100 mm becomes 160 mm 200 mm becomes 320 mm
Screen & Viewfinder	Canon EOS R	Canon EOS 20D
Articulated LCD	Fully articulated	Fixed
Screen size	3.2”	1,8”
Screen dots	2100000	118000
Touch screen	Yes	No
Screen type	TFT LCD	N/A
Live view	Yes	No
Viewfinder Type	Electronic	Optical (pentaprism)
Viewfinder Coverage	100%	95%
Viewfinder Magnification	0.76×	0.9× (0.56× 35mm equiv.)
Viewfinder Resolution	3690000	N/A
Photography features	Canon EOS R	Canon EOS 20D
Frames per second	8 fps	5 fps
Minimum Shutter Speed	30 seconds	30 seconds
Maximum Shutter Speed	1/8000 seconds	1/8000 seconds
Built-in Flash	No	Yes
Built-in Flash Range	N/A	12 meters
External Flash	Yes	Yes
Self-Timer	Yes	Yes
Time-lapse	No	Yes
Metering modes	Multi Center Weighted Spot Partial	Multi Center Weighted Partial
Exposure Compensation	+/- 3 (at 1/3 EV, 1/2 EV steps)	+/- 2 (at 1/3 EV, 1/2 EV steps)
Videography features	Canon EOS R	Canon EOS 20D
Video recording	Yes	No
Video format	MPEG4 H.264	N/A
Video resolution	1280 x 720 1920 x 1080 3840 x 2160	N/A
Built-in Microphone	Yes	No
Built-in Speakers	Yes	No
Storage	Canon EOS R	Canon EOS 20D
Memory Card	SD/SDHC	Compact Flash
Connectivity	Canon EOS R	Canon EOS 20D
HDMI Output	Yes	No
Microphone Port	Yes	No
Headphone Port	Yes	No
Wireless	Yes Built-in (802.11b/g/n + Bluetooth 4.1 LE)	No
Remote Control	Yes (via smartphone)	Yes (N3 connector)
GPS	No	No
Body & Dimensions	Canon EOS R	Canon EOS 20D
Enviromentally sealed	Yes	No
Battery	Battery Pack	Battery Pack
Battery Details	LP-E6N lithium-ion battery & charger	BP-511A Lithium-Ion battery pack
Battery Life (CIPA)	370 shots	700 shots
Width	136 mm	144 mm
Height	98 mm	106 mm
Depth	84 mm	72 mm
Weight	660 gram	770 gram