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Canon EOS R5 vs Sony Alpha 7S III

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

CanonEOS R5SonyAlpha 7S III
Overview
ReleasedJuly 2020September 2020
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeCMOSBack-illuminated Exmor R CMOS
Sensor dimensions36 × 24 mm35.6 × 23.8 mm
Effective resolution45 MP12.1 MP
Largest image8192 × 54644240 × 2832
RAW recordingYesYes
Standard ISO range100–5120080–102400
Sensor detailApproximately 45 million effective and 47.1 million total pixels; 36 × 24 mm full-frame CMOS sensor; conventional single-shot output 8192×5464Approximately 12.9 million total pixels; 3:2 sensor; anti-static coating and ultrasonic dust reduction
Image formatsJPEG, HEIF, RAW/C-RAW and Dual Pixel RAW in CR3 format; later firmware adds approximately 400 MP JPEG high-resolution mode combining nine sensor-shift exposures of a static scene, not single-shot sensor resolutionJPEG, 10-bit HEIF and compressed or uncompressed 14-bit RAW (Sony ARW 4.0); XAVC S, XAVC S-I and XAVC HS movies
ISO detailStandard still-photo ISO 100–51200, expandable to ISO 50–102400; standard manual movie ISO 100–25600 with restrictions by modeStandard still-image and movie ISO 80–102400; still-image extension ISO 40–409600; movie extension reaches ISO 409600
Image processorDIGIC XBIONZ XR
Lens and shooting
Lens mountCanon RFSony E-mount
StabilisationLens and sensor shiftSensor shift
Maximum continuous burst20 fps10 fps
Lens detailNative RF and adapted EF/EF-S lenses, excluding EF-M; EF-S lenses use approximately 1.6× crop and lower-resolution outputInterchangeable E-mount; full-frame FE lenses use the whole sensor; APS-C still-image crop available. ILCE-7SM3 is supplied without a lens.
AutofocusDual Pixel CMOS AF II; up to 1053 automatic still-photo zones or 5940 selectable positions; people, dogs, cats and birds detection, with vehicle detection added by firmware; maker −6 EV claim with f/1.2 non-DS lens, centre point, One-Shot AF, ISO 100 at 23°CFast Hybrid AF with 759 phase-detection and 425 contrast-detection points in full-frame stills; detection range EV -6 to 20 at ISO 100 with an f/2 lens; Real-time Tracking and human Eye AF in stills and video; animal Eye AF for stills
ShutterMechanical and first-curtain electronic modes, 30–1/8000 second plus Bulb; electronic shutter 0.5–1/8000 second; shutter can close on power-off to reduce dust exposureMechanical or silent electronic focal-plane shutter; 30 seconds to 1/8000 second plus Bulb; flash sync 1/250 second with Sony flash; selectable electronic first curtain
Burst detailUp to 20 fps electronic or 12 fps mechanical/first-curtain electronic with AF/AE tracking, subject to compatible lens, aperture, battery and shooting conditions; maker 12 fps RAW burst example is 66 frames on UHS-I, 87 on UHS-II or 180 on its 325 GB CFexpress test card, not the 20 fps bufferUp to 10 fps Hi+ with AF/AE tracking, 8 fps Hi with live view, 6 fps Mid or 3 fps Lo; Sony claims over 1,000 uncompressed RAW images at 10 fps with a CFexpress Type A card
Stabilisation detailFive-axis sensor-shift IS coordinates with compatible lens IS; maker up-to-8-stop CIPA claim with RF 24-105mm F4L IS USM at 105 mm; actual benefit varies with lens and techniqueFive-axis sensor-shift correction; maker claim 5.5 stops under CIPA pitch/yaw testing with the FE 50 mm f/1.4 ZA lens and long-exposure noise reduction off; Active movie mode adds electronic correction and narrows the view
FlashNo built-in flash; hotshoe and flash-sync socket; sync 1/200 second mechanical or 1/250 second first-curtain electronicNo built-in flash; Multi Interface Shoe supports compatible external flash; flash unavailable with electronic shutter
Exposure controls384-zone image-sensor metering; Fv/P/Tv/Av/M and custom modes; rear control wheel, AF joystick and top status LCD1200-zone evaluative metering; program, aperture priority, shutter priority and manual modes; exposure compensation ±5 EV, or ±3 EV using the dedicated dial
Video
Highest video resolution8192 × 4320 at 29.97 fps3840 × 2160 at 120 fps
Video detailInternal full-width DCI 8K 8192×4320 up to 29.97 fps, including 12-bit RAW, or UHD 8K 7680×4320; normal 4K up to 59.94 fps and high-frame-rate 4K/Full HD up to 119.88 fps without sound. Canon Log 1/3 or HDR PQ 10-bit 4:2:2 internal recording; 8K-oversampled 4K HQ up to 29.97 fps. CFexpress required for RAW and selected high-bandwidth modes. Guide normal clip limit 29 minutes 59 seconds, high-frame-rate limit 7 minutes 29 seconds; temperature and firmware settings affect available recording timeInternal 3840 × 2160 up to 120p NTSC or 100p PAL with 10-bit 4:2:2 options; 120p crops the view by approximately 10%. XAVC S/HS reaches 280 Mbps at 120p; XAVC S-I All-Intra reaches 600 Mbps at 60p. S&Q supports Full HD 240 fps capture with 1420 × 804 sensor readout. HDMI can output 4264 × 2408 16-bit RAW at up to 60p to a compatible external recorder. S-Log2/S-Log3, HLG, timecode and gamma display assist; current Sony specifications include S-Cinetone.
AudioBuilt-in monaural microphone, 3.5 mm stereo microphone input and headphone outputBuilt-in stereo microphone; 3.5 mm microphone and headphone sockets; digital-audio Multi Interface Shoe; compatible accessories support four-channel 24-bit LPCM
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3.15″3″
Screen dots2,100,0001,440,000
TouchscreenYesYes
Tilting screenYesYes
Display detailVari-angle touch TFT LCD with approximately 2.1 million dots; UK maker specifies 3.15 inches while technical supplement rounds to 3.2 inches; separate top status LCDSide-opening vari-angle LCD; opens approximately 176° and rotates approximately 270°; touch menus and focus selection
Viewfinder detail0.5-inch OLED EVF with approximately 5.76 million dots, 100% coverage and 0.76× magnification with 50 mm lens at infinity, −1 dioptre; up to 120 fps refresh0.64-type Quad-XGA OLED; 9,437,184 dots; 100% coverage; approximately 0.90× magnification with a 50 mm lens at infinity; 60 or 120 fps refresh
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)320 photographs600 photographs
Body weight650 g614 g
Release detailCanon Camera Museum records July 2020 marketing; Photography Blog reproduces maker launch wording of availability on 30 July, kept as a source qualification rather than an inferred actual first-shipment daySony USA specifies September 2020 retail availability. This is ILCE-7SM3 with current maker-supported specification features.
Recording mediaOne CFexpress Type B slot and one SD/SDHC/SDXC UHS-II slotTwo combined CFexpress Type A/SD slots, each supporting UHS-I and UHS-II SDHC/SDXC; simultaneous, relay or separate-format recording
PortsUSB-C SuperSpeed USB 3.1 Gen 2, micro HDMI Type D, 3.5 mm microphone/headphone sockets, N3 remote-release and flash-sync sockets (Photography Blog); maker guide confirms micro HDMIFull-size HDMI Type A, USB-C (USB 3.2 at 5 Gbps), Multi/Micro USB, 3.5 mm microphone and headphone sockets, digital-audio Multi Interface Shoe and vertical-grip connector
Wireless connectionsWi-Fi 802.11a/b/g/n/ac at 2.4/5 GHz, regional 5 GHz restrictions; Bluetooth Low Energy 5.0 in original maker technical supplement, overriding older review spec tables saying 4.2; optional WFT-R10 adds Ethernet and enhanced wireless transferWi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz; Bluetooth 5.0; NFC; FTP transfer and smartphone remote control; 5 GHz availability varies by region
Battery life detailLP-E6NH; approximately 320 EVF/490 screen shots at 23°C in power-saving mode, or 220 EVF/320 screen in smooth mode; LP-E6N/LP-E6 compatibility has operational restrictionsNP-FZ100; CIPA maker claim approximately 600 photographs using LCD or 510 using viewfinder; actual movie claim approximately 95 minutes with LCD or 80 with viewfinder
ChargingCompatible PD-E1 supports in-camera USB charging and camera power; external charger and optional AC-E6N/DR-E6 power accessoriesUSB-C in-camera charging and power supply with USB Power Delivery support
DimensionsApproximately 138.5 × 97.5 × 88 mm (width × height × depth)Approximately 128.9 × 96.9 × 80.8 mm; depth from grip to monitor 69.7 mm
Weight detailApproximately 650 g body only without body cap, or 738 g with battery and CFexpress card; photographed kit lens excludedApproximately 614 g body only; 699 g with battery and memory card; both exclude lens
MaterialsWeather-sealed magnesium-alloy chassis described by Amateur Photographer; no water-resistance rating inferredMagnesium-alloy body; maker describes dust and moisture resistance without guaranteeing complete protection
In the box–Sony Japan lists NP-FZ100 battery, BC-QZ1 charger and mains cable, cable protector, strap, body/shoe caps, eyepiece cup and USB-A to USB-C cable

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