Canon EOS R7 vs Nikon D3100

This is a full comparison between the cameras Canon EOS R7 and Nikon D3100. We compare them by looking at the categories you see below.

Manufacturing

Canon EOS R7 is manufacturered by Canon but Nikon D3100 is from Nikon. Both Canon and Nikon are well known brands though.

Type of camera

Canon EOS R7 is a Mirrorless camera while Nikon D3100 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Canon EOS R7 has a "Canon APS-C"-sensor while Nikon D3100 has a "Nikon DX"-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)
Camera selection can affect the focal length (Nikon)

Resolution

Canon EOS R7 has a 33 MP (Megapixels) resolution while Nikon D3100 has 14,2 MP. If we break down this in more detail this is the data behind the numbers:

Canon EOS R7 has a 128 % larger resolution than Nikon D3100. 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 R7 has a larger ISO-range than Nikon D3100. Canon EOS R7 has an ISO range that stretches from 100 to 32000 while Nikon D3100 has 100 to 12800.

Autofocus and lens compatibility

There is a big difference between these two cameras. Canon EOS R7 has a built-in autofocus motor but Nikon D3100 does not. If you want to be able to use autofocus on Nikon D3100 there is a need for having an autofocus motor inside the lens. We really encourage you to look closely at our lens compatibility charts at the links below.

Worth mentioning is that Canon EOS R7 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 R7
Lens compatibility chart for Nikon D3100

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS R7 can shoot up to 15 pictures per seconds and Nikon D3100 can shoot up to 3 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 R7 and Nikon D3100 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 R7 weighs 612 gr (equal to 1.35 lb) which is 21% heavier than Nikon D3100 and its 505 gr (or 1.11 lb).

Canon EOS R7 vs Nikon D3100 Specs

Below you will find the complete and detailed technical specs for both Canon EOS R7 and Nikon D3100, 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 R7	Nikon D3100
Name	Canon EOS R7	Nikon D3100
Manufacturer	Canon	Nikon
Release Date and Price	Canon EOS R7	Nikon D3100
Release Year	2022	2010
Release Date	2022-05-24	2010-08-19
MSRP	1499 USD	699 USD
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Camera Type	Canon EOS R7	Nikon D3100
Camera Type	Mirrorless	DSLR
Sensor	Canon EOS R7	Nikon D3100
Sensor Size	APS-C (approx 22.3 x 14.9 mm)	APS-C (approx 23.7 x 15.5 mm) Also known as "DX"
Sensor Type	CMOS	CMOS
Resolution	6960 x 4640 pixels	4608 x 3072 pixels
Megapixels	33 MP	14,2 MP
Image Processor	DIGIC X	EXPEED 2
Image	Canon EOS R7	Nikon D3100
ISO Range	100 - 32000	100 - 12800
White Balance Presets	6	12
Custom White Balance	Yes	Yes
Image Stabilization	Yes (Sensor-Shift)	No
Image Stabilization CIPA Rating	0 stops	0 stops
Uncompressed format	RAW	RAW
Optics & Focus	Canon EOS R7	Nikon D3100
Autofocus Motor	Yes	No
Autofocus	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 Tracking Single Continuous Face Detection LiveView
Focus Points	651	11
Lens Mount	Canon RF See Compatible Lenses	Nikon F See Compatible Lenses
Focal Length Multiplier	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	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 R7	Nikon D3100
Articulated LCD	Fully articulated	Fixed
Screen size	3”	3”
Screen dots	N/A	230000
Touch screen	Yes	No
Screen type	N/A	TFT LCD monitor
Live view	Yes	Yes
Viewfinder Type	Electronic	Optical (pentamirror)
Viewfinder Coverage	100%	95%
Viewfinder Magnification	1.15×	0.8× (0.53× 35mm equiv.)
Viewfinder Resolution	2360000	N/A
Photography features	Canon EOS R7	Nikon D3100
Frames per second	15 fps	3 fps
Minimum Shutter Speed	30 seconds	30 seconds
Maximum Shutter Speed	1/8000 seconds	1/4000 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	No
Metering modes	Multi Center Weighted Spot Partial	Multi Center Weighted Average
Exposure Compensation	+/- 3 (at 1/3 EV, 1/2 EV steps)	+/- 5 (at 1/3 EV steps)
Videography features	Canon EOS R7	Nikon D3100
Video recording	Yes	Yes
Video format	MPEG4 H.264 H.265	MPEG4
Video resolution	1920 x 1080 3840 x 2160	1280 x 720 1920 x 1080
Built-in Microphone	Yes	Yes
Built-in Speakers	Yes	No
Storage	Canon EOS R7	Nikon D3100
Memory Card	SD/SDHC	SD/SDHC
Connectivity	Canon EOS R7	Nikon D3100
HDMI Output	Yes	Yes
Microphone Port	Yes	No
Headphone Port	Yes	No
Wireless	Yes Built-in (Wireless LAN (IEEE802.11b/g/n) (2.4 GHz), with Bluetooth 4.2)	Yes Eye-Fi Connected
Remote Control	Yes (Wired, wireless or IR)	Optional
GPS	Yes Optional via GPS Receiver GP-E2	Yes Optional
Body & Dimensions	Canon EOS R7	Nikon D3100
Enviromentally sealed	Yes	No
Battery	Battery Pack	Battery Pack
Battery Details	Rechargeable Li-ion Battery LP-E6NH	Lithium-Ion EN-EL14 rechargeable battery & charger
Battery Life (CIPA)	660 shots	N/A
Width	132 mm	124 mm
Height	90 mm	96 mm
Depth	92 mm	75 mm
Weight	612 gram	505 gram