Canon EOS R7 vs Canon EOS 1D X Mark III

This is a full comparison between the cameras Canon EOS R7 and Canon EOS 1D X Mark III. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Canon.

Canon EOS R7 were released 2022 and Canon EOS 1D X Mark III was released 2020. That is a 2 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Canon EOS R7 2022
Canon EOS 1D X Mark III 2020

Type of camera

Canon EOS R7 is a Mirrorless camera while Canon EOS 1D X Mark III 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 Canon EOS 1D X Mark III has a "Canon Full Frame"-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 R7 80 mm
Canon APS-C sensor
Crop factor/focal length multiplier by * 1.6
Canon EOS 1D X Mark III 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** 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 R7 has a 33 MP (Megapixels) resolution while Canon EOS 1D X Mark III has 20 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Canon EOS R7 33 MP
32294400 pixels
6960 x 4640
Canon EOS 1D X Mark III 20 MP
19961856 pixels
5472 x 3648

Canon EOS R7 has a 62 % larger resolution than Canon EOS 1D X Mark III. 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 1D X Mark III has a larger ISO-range than Canon EOS R7. Canon EOS 1D X Mark III has an ISO range that stretches from 100 to 102400 while Canon EOS R7 has 100 to 32000.

Camera ISO Range
Canon EOS R7 100-32000
Canon EOS 1D X Mark III 100-102400

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 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 Canon EOS 1D X Mark III

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 Canon EOS 1D X Mark III can shoot up to 20 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS R7 15
Canon EOS 1D X Mark III 20

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 Canon EOS 1D X Mark III 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 1D X Mark III weighs 1440 gr (equal to 3.17 lb) which is 135% heavier than Canon EOS R7 and its 612 gr (or 1.35 lb).

Camera Weight
Canon EOS R7 612 gr
1.35 lb
Canon EOS 1D X Mark III 1440 gr
3.17 lb

Canon EOS R7 vs Canon EOS 1D X Mark III Specs

Below you will find the complete and detailed technical specs for both Canon EOS R7 and Canon EOS 1D X Mark III, 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
Canon EOS 1D X Mark III
Name Canon EOS R7 Canon EOS 1D X Mark III
Manufacturer Canon Canon
Release Date and Price
Canon EOS R7
Canon EOS 1D X Mark III
Release Year 2022 2020
Release Date 2022-05-24 2020-01-07
MSRP 1499 USD 6499 USD
Buy it today
Camera Type
Canon EOS R7
Canon EOS 1D X Mark III
Camera Type Mirrorless DSLR
Sensor
Canon EOS R7
Canon EOS 1D X Mark III
Sensor Size APS-C (approx 22.3 x 14.9 mm) Full Frame (approx 36 x 24 mm)
Sensor Type CMOS CMOS
Resolution 6960 x 4640 pixels 5472 x 3648 pixels
Megapixels 33 MP 20 MP
Image Processor DIGIC X DIGIC X
Image
Canon EOS R7
Canon EOS 1D X Mark III
ISO Range 100 - 32000 100 - 102400
White Balance Presets 6 7
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
Canon EOS 1D X Mark III
Autofocus Motor Yes Yes
Autofocus Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Focus Points 651 191
Lens Mount Canon RF

See Compatible Lenses
Canon EF

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
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
Screen & Viewfinder
Canon EOS R7
Canon EOS 1D X Mark III
Articulated LCD Fully articulated Fixed
Screen size 3” 3.2”
Screen dots N/A 2100000
Touch screen Yes Yes
Screen type N/A TFT LCD
Live view Yes Yes
Viewfinder Type Electronic Optical (pentaprism)
Viewfinder Coverage 100% 100%
Viewfinder Magnification 1.15× 0.76×
Viewfinder Resolution 2360000 0
Photography features
Canon EOS R7
Canon EOS 1D X Mark III
Frames per second 15 fps 20 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/8000 seconds
Built-in Flash No No
Built-in Flash Range N/A N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No Yes
Metering modes Multi
Center Weighted
Spot
Partial
Multi
Center Weighted
Spot
Partial
Exposure Compensation +/- 3 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Canon EOS R7
Canon EOS 1D X Mark III
Video recording Yes Yes
Video format MPEG4
H.264
H.265
MPEG4
H.264
H.265
Video resolution 1920 x 1080
3840 x 2160
1280 x 720
1920 x 1080
3840 x 2160
4096 x 2160
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Canon EOS R7
Canon EOS 1D X Mark III
Memory Card SD/SDHC
Compact Flash Express
Connectivity
Canon EOS R7
Canon EOS 1D X Mark III
HDMI Output Yes Yes
Microphone Port Yes Yes
Headphone Port Yes Yes
Wireless Yes
Built-in (Wireless LAN (IEEE802.11b/g/n) (2.4 GHz), with Bluetooth 4.2)
Yes
Built-in (Wireless LAN (IEEE802.11b/g/n) (2.4 GHz only), with Bluetooth support)
Remote Control Yes (Wired, wireless or IR)
Remote control with N3 type contact
GPS Yes
Optional via GPS Receiver GP-E2
Yes
Built-in
Body & Dimensions
Canon EOS R7
Canon EOS 1D X Mark III
Enviromentally sealed Yes Yes
Battery Battery Pack Battery Pack
Battery Details Rechargeable Li-ion Battery LP-E6NH
LP-E19 lithium-ion battery & dual charger
Battery Life (CIPA) 660 shots 2850 shots
Width 132 mm 158 mm
Height 90 mm 168 mm
Depth 92 mm 83 mm
Weight 612 gram 1440 gram