Canon R5 vs Sony A7S III Comparison

So, did you at some point regret upgrading to the Canon R5 or ever thought about the Sony A7S III, today I’m going to be comparing the specs of the two different cameras Canon R5 vs Sony A7S III.

Those cameras blow the market as the best mirrorless cameras and I’m going to give you information to help you to determine which camera is right for you.

So, we know that those are hybrid cameras and they are capable of both photo and video the Sony A7S III has a full-frame sensor in comparison with the canon R5 has a full-frame sensor.

So, megapixels are usually something that’s more important when it comes to photography so the A7S III has a 12-megapixel sensor and the Canon R5 features a 45-megapixel sensor so the R5 takes the point for this one.

Screen Type

Canon R5 Screen
Sony A7S III

If we take a look at the LCD screen on each one of these cameras the A7S III has a 3.0″ inch 1.44 million dots touchscreen LCD whereas the Canon R5 has a 3.2″ inch 2.1 million dots touchscreen LCD.

the A7S III does not have a top screen but Canon R5 has top screens but both have flip screens.

Canon R5
Sony A7S III

Dynamic Range

A7S III has 15 stops of dynamic range and In comparison with Canon R5 which has 45 megapixels sensor has just 11 stops of dynamic range so in this feature A7S III is the winner.

Canon R5
Sony A7S III

Max Frames

When it comes to max frames each one of these cameras can produce a different maximum resolution so the A7S III is capable of 120 frames per second in 4k as well as the Canon R5 which does the same.

Crop Factor

When it comes to those maximum frames per second in 4K crop factor is very important and in this feature, the A7S III has a 1.1 times crop in 4k 120 whereas the canon R5 has no crop in fact it doesn’t have any crop in any resolution.

Canon R5
Sony A7S III

EVF Resolution

In terms of EVF resolution, the A7S III has 9.44 million dots EVF while both the r5 has 5.76 million dots and the winner is A7S III at this point.


So, the inputs and outputs of these cameras are important features for filmmakers and the A7S III has a full-size HDMI and 3.5 millimeter headphone and microphone jacks whereas the Canon R5 has a micro HDMI and 3.5 millimeter headphone and microphone jacks.



the A7S III has Dual CF express type A and SD card slots while the Canon R5 has a CF express type B slot and an S card slot.

Raw Capabilities

the sony A7S III advertises 16-bit linear raw and it does it through HDMI and it’s going to get compressed down to 12-bit log raw whereas the R5 records 12-bit raw internally.

in-body stabilization capabilities

the A7S III offers 5.5 stops of stabilization when used with a stabilized lens whereas the R5 offers up to 8 stops of stabilization when used with a stabilized lens. So, the R5 has the highest stops of stabilization autofocus ven better that Pocket 6K Pro and Panasonic S1H.


the A7S III offers phase detect autofocus while the Canon R5 offers its dual pixel autofocus the winner here is the A7S III because I found it to be the most reliable autofocus than R5.

Overheating Capabilities

When it comes to overheating Canon officially reported that the canon r5 has overheating issues and will stop for long periods of time and can only shoot in short bursts before overheating.

On the other head, Sony has claimed that the A7S III has no overheating except in higher temperatures and is not so severe as the Canon R5.

Battery Life

the Sony A7S III offers 600 shots and a 2280 milliamp hour battery whereas the Canon R5 offers 490 shots in its power saving mode at 2130 milliamp hours.


If we compare prices the Sony A7S III comes to around $3,500 while the Canon R5 comes in at $3,900 that’s an extra $400 whereas the A7S III is $400 cheaper.

Canon R5

Sony A7S III

Release Date9 July 202028 July 2020
Body typeSLR Style MirrorlessSLR Style Mirrorless
Sensor typeCMOS Full FrameBSI CMOS Full Frame
Sensor size36 x 24 mm35.6 x 23.8 mm
Sensor resolution8192 x 54644240 x 2832
Sensor pixels 4512
ProcessorDigic XBionz XR
Color filter arrayPrimary color filterPrimary color filter
ISOAuto 100-51200
Expand 50-102400
Expand to 40-409600
Image stabilization5 axis 8.0 stop5 axis 5.5 stop
Focus typeDual Pixel CMOSFast Hybrid
Focus points1053759
Lens mountCanon RFSony E
Focal length multiplier1x1x
Screen typeFully Articulated Fully Articulated 
Display typeLCD TouchLCD Touch
Screen size3.2″3.0″
Screen resolution2,100,000 dots1,440,000 dots
Viewfinder typeElectronic OledElectronic Oled
Viewfinder resolution5,760,000 dots9,440,000 dots
Viewfinder magnification0.76x0.91x
Shutter typeElectronically Controlled vertical traverse focal planeElectronically Controlled vertical traverse focal plane
Shutter speedMin 30 sec
Max 1/8000 sec
Electronic 1/8000 sec
Min 30 sec
Max 1/8000 sec
Electronic 1/8000 sec
Continuous drive20.0 fps10.0 fps
Build in FlashNONO
External FlashYesYes
Sync Speed 1/200 sec1/250 sec
Exposure compensation+/- 3 at 1/3 EV, 1/2 EV steps+/- 5 at 1/3 EV, 1/2 EV steps
AE Bracketing+/-6 (2,3,5,7 frames at 1/3 EV, 1/2 EV steps+/-5 (3,5, frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps
WB BracketingYesYes
Video Resolution8K UltraHD 30
4K 60
Full HD 120
4K 120
Full HD 240
Log GammaC LogS Log2, S Log3
Video FormatMPEG 4, H.264, H.265MPEG 4, XAVC SXAVC HS/XAVC S-1/H.264, H.265
Storage typeSD/CFexpress UHS-IISD/CFexpress UHS II Type A Dual slots
ConnectivityUSB 3.2 GEN2- 10 Bit/secUSB 3.2 GEN1- 5 Bit/sec
Wireless Transmitter802.11b/g/n/ac 5 GHz802.11b/g/n/ac 5 GHz
Build in BluetoothYesYes
Battery life CIPA320600
Dimensions138 x 98 x 88 mm129 x 97 x 81 mm

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