Canon EOS R vs Nikon D300s

This is a full comparison between the cameras Canon EOS R and Nikon D300s. We compare them by looking at the categories you see below.

Manufacturing

Canon EOS R is manufacturered by Canon but Nikon D300s is from Nikon. Both Canon and Nikon are well known brands though.

Canon EOS R were released 2018 and Nikon D300s was released 2009. That is a 9 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Canon EOS R 2018
Nikon D300s 2009

Type of camera

Canon EOS R is a Mirrorless camera while Nikon D300s 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 Nikon D300s has a "Nikon DX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Canon EOS R 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Nikon D300s 75 mm
Nikon DX sensor
Crop factor/focal length multiplier by * 1.5

** 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)
Camera selection can affect the focal length (Nikon)

Resolution

Canon EOS R has a 30 MP (Megapixels) resolution while Nikon D300s has 12,3 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Canon EOS R 30 MP
30105600 pixels
6720 x 4480
Nikon D300s 12,3 MP
12212224 pixels
4288 x 2848

Canon EOS R has a 147 % larger resolution than Nikon D300s. 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 Nikon D300s. Canon EOS R has an ISO range that stretches from 100 to 40000 while Nikon D300s has 200 to 6400.

Camera ISO Range
Canon EOS R 100-40000
Nikon D300s 200-6400

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.

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 Nikon D300s

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 Nikon D300s can shoot up to 7 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS R 8
Nikon D300s 7

Ability to record movies

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

In this case, both Canon EOS R and Nikon D300s 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.

Nikon D300s weighs 938 gr (equal to 2.07 lb) which is 42% heavier than Canon EOS R and its 660 gr (or 1.46 lb).

Camera Weight
Canon EOS R 660 gr
1.46 lb
Nikon D300s 938 gr
2.07 lb

Canon EOS R vs Nikon D300s Specs

Below you will find the complete and detailed technical specs for both Canon EOS R and Nikon D300s, 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
Nikon D300s
Name Canon EOS R Nikon D300s
Manufacturer Canon Nikon
Release Date and Price
Canon EOS R
Nikon D300s
Release Year 2018 2009
Release Date 2018-09-05 2009-07-30
MSRP 2299 USD 1799 USD
Buy it today
Camera Type
Canon EOS R
Nikon D300s
Camera Type Mirrorless DSLR
Sensor
Canon EOS R
Nikon D300s
Sensor Size Full Frame (approx 36 x 24 mm) APS-C (approx 23.7 x 15.5 mm)
Also known as "DX"
Sensor Type CMOS CMOS
Resolution 6720 x 4480 pixels 4288 x 2848 pixels
Megapixels 30 MP 12,3 MP
Image Processor DIGIC 8 EXPEED
Image
Canon EOS R
Nikon D300s
ISO Range 100 - 40000 200 - 6400
White Balance Presets 6 12
Custom White Balance Yes Yes
Image Stabilization No No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW + TIFF
Optics & Focus
Canon EOS R
Nikon D300s
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Face Detection
LiveView
Focus Points 5655 51
Lens Mount Canon RF

See Compatible Lenses
Nikon F

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
DX / APS-C (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Screen & Viewfinder
Canon EOS R
Nikon D300s
Articulated LCD Fully articulated Fixed
Screen size 3.2” 3”
Screen dots 2100000 920000
Touch screen Yes No
Screen type TFT LCD Super Density TFT color LCD with wide-viewing angle
Live view Yes Yes
Viewfinder Type Electronic Optical (pentaprism)
Viewfinder Coverage 100% 100%
Viewfinder Magnification 0.76× 0.94× (0.63× 35mm equiv.)
Viewfinder Resolution 3690000 N/A
Photography features
Canon EOS R
Nikon D300s
Frames per second 8 fps 7 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
Spot
Exposure Compensation +/- 3 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Canon EOS R
Nikon D300s
Video recording Yes Yes
Video format MPEG4
H.264
Motion JPEG
Video resolution 1280 x 720
1920 x 1080
3840 x 2160
1280 x 720
Built-in Microphone Yes Yes
Built-in Speakers Yes No
Storage
Canon EOS R
Nikon D300s
Memory Card SD/SDHC
Compact Flash
Connectivity
Canon EOS R
Nikon D300s
HDMI Output Yes Yes
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Built-in (802.11b/g/n + Bluetooth 4.1 LE)
Yes
Eye-Fi Connected
Remote Control Yes (via smartphone) Yes (Optional, wired or wireless)
GPS No Yes
Optional with GP-1
Body & Dimensions
Canon EOS R
Nikon D300s
Enviromentally sealed Yes Yes
Battery Battery Pack Battery Pack
Battery Details LP-E6N lithium-ion battery & charger
Lithium-Ion EN-EL3e rechargeable battery & charger
Battery Life (CIPA) 370 shots 950 shots
Width 136 mm 147 mm
Height 98 mm 114 mm
Depth 84 mm 74 mm
Weight 660 gram 938 gram