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Canon EOS R6 Mark II vs Sony Alpha 7 IV

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

Better figure, where one is clearly better

CanonEOS R6 Mark IISonyAlpha 7 IV
Overview
ReleasedNovember 2022November 2021
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeCMOSExmor R back-illuminated CMOS
Sensor dimensions35.9 × 23.9 mm35.9 × 23.9 mm
Effective resolution24.2 MP33 MP
Largest image6000 × 40007008 × 4672
RAW recordingYesYes
Standard ISO range100–102400100–51200
Sensor detailApproximately 24.2 million effective and 25.6 million total pixels; UK maker specifies 35.9 × 23.9 mm, while the later manual rounds sensor screen size to 36 × 24 mm; fixed low-pass filter and automatic cleaningApproximately 34.1 million total pixels; 3:2 full-frame sensor
Image formatsRAW, C-RAW, JPEG and HEIF; Dual Pixel RAW and RAW burst supportJPEG, HEIF and 14-bit RAW; compressed, lossless compressed and uncompressed RAW options
ISO detailStandard still-photo ISO 100–102400, expandable to ISO 50 or 204800; movie standard range ISO 100–25600, or ISO 800–25600 with Canon Log 3Standard still-image ISO 100–51200; expanded ISO 50–204800. Movie ISO 100–51200, expandable to 102400.
Image processorDIGIC XBIONZ XR
Lens and shooting
Lens mountCanon RFSony E-mount
StabilisationLens and sensor shiftSensor shift
Maximum continuous burst40 fps10 fps
Lens detailCanon RF and RF-S lenses; EF/EF-S lenses via EF-EOS R adapter, excluding EF-M; RF-S/EF-S use approximately 1.6× cropInterchangeable E-mount; body figures exclude lenses. ILCE-7M4K kit includes FE 28–70mm F3.5–5.6 OSS.
AutofocusDual Pixel CMOS AF II; up to 1053 automatic zones or 4897 manually selected positions for stills, with coverage depending on lens/settings; subject recognition for people, dogs, cats, birds, horses and vehicles including aircraft/trains; −6.5 EV claim with f/1.2 non-DS lens, centre point, One-Shot AF at ISO 100 and 23°CFast Hybrid AF with 759 phase-detection and 425 contrast-detection points in full-frame mode; Eye AF recognises humans, animals and birds in stills and movies
ShutterMechanical or electronic first curtain 30–1/8000 second plus Bulb; electronic up to 1/16000 in Tv/M, with restrictions; high-speed continuous+ limited to 1/8000Mechanical or electronic shutter; 1/8000 second to 30 seconds plus Bulb; full-frame flash sync 1/250 second
Burst detailFull-resolution AF/AE tracking up to 40 fps electronic or 12 fps mechanical/electronic first curtain; speed depends on battery, lens, shutter speed and settings. Separate RAW burst mode is 30 fps with optional 0.5-second pre-captureHi+ up to 10 fps, Hi 8 fps, Mid 6 fps and Lo 3 fps. Photography Blog and TechRadar report JPEG/compressed RAW are needed for 10 fps; uncompressed or lossless RAW slows to approximately 5–6 fps. Speed and buffer depend on shooting conditions and card.
Stabilisation detailFive-axis sensor-shift IS with compatible lens coordination; maker up to eight stops at 105 mm with RF 24-105mm F4L IS USM, CIPA yaw/pitch testFive-axis sensor shift; maker claims 5.5 stops under CIPA pitch/yaw conditions with Planar T* FE 50mm F1.4 ZA. Active movie stabilisation adds a crop.
FlashMulti-function shoe supports compatible EX/EL Speedlites; mechanical sync 1/200 second or electronic first-curtain sync 1/250 second–
Exposure controlsFv/P/Tv/Av/M and automatic modes; 384-zone metering; ±3 EV compensation–
Video
Highest video resolution3840 × 2160 at 59.94 fps3840 × 2160 at 60 fps
Video detailInternal UHD 3840×2160 up to 59.94/50 fps from full-width 6K oversampling; Full HD high-frame-rate up to 179.82 fps without sound; optional crop uses 62% sensor horizontal area; 6K RAW is external HDMI recording with compatible recorder, not internal. Canon Australia claims over 40 minutes of oversampled 4K60 or up to six hours 4K30, subject to temperature, card and batteryInternal 4K up to 60p, including 10-bit 4:2:2; 60p/50p uses APS-C/Super 35 rather than full-frame readout. Full-frame 4K 30p uses 7K oversampling. Full HD up to 120p; S-Log3, HLG and S-Cinetone. USB streaming tops out at 4K 15p or Full HD 60p, separately from internal recording.
AudioBuilt-in stereo microphones, 3.5 mm microphone/headphone sockets and compatible multi-function-shoe digital audio accessories–
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3″
Screen dots1,620,0001,036,800
TouchscreenYesYes
Tilting screenYesYes
Display detailVari-angle 3-inch capacitive touchscreen, approximately 1.62 million dots and 100% coverageSide-opening vari-angle touchscreen, approximately 176° opening and 270° rotation; dots are not image pixels
Viewfinder detail0.5-inch OLED EVF, approximately 3.69 million dots, 100% coverage and 0.76× magnification with 50 mm lens at infinity0.5-type OLED; 3,686,400 dots; 100% coverage; approximately 0.78× magnification; 60 or 120 fps display
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)450 photographs580 photographs
Body weight588 g573 g
Release detailCanon Australia states retail availability from late November 2022; Canon Camera Museum records December 2022 marketing in its historical entry. Main date uses the earlier maker-published retail month, with no inferred daySony Hong Kong states 25 November 2021 availability; the UK announcement gives December 2021. Announced on 21 October 2021. This is ILCE-7M4, not the Alpha 7R IV or Alpha 7S III.
Recording mediaTwo SD/SDHC/SDXC slots, both supporting UHS-IISlot 1 accepts CFexpress Type A or UHS-I/II SD cards; slot 2 accepts UHS-I/II SD cards
PortsUSB-C 3.2 Gen 2, micro HDMI Type D, 3.5 mm microphone/headphone sockets and E3 remote-switch terminalFull-size HDMI Type A; USB-C 10Gbps with Power Delivery; Multi/Micro USB; 3.5 mm microphone and headphone sockets; Multi Interface Shoe with digital audio
Wireless connectionsWi-Fi 802.11a/b/g/n/ac at 2.4/5 GHz and Bluetooth Low Energy 5.1; frequency support varies by regionDual-band Wi-Fi 802.11a/b/g/n/ac, subject to regional 5 GHz restrictions; Bluetooth 4.1
Battery life detailLP-E6NH; CIPA power-saving approximately 450 viewfinder or 760 screen shots at 23°C; smooth-display approximately 320/580 by maker test conditions; LP-E6N/LP-E6 compatible with reduced enduranceNP-FZ100. Current Sony Japan specifications give approximately 580 photographs with the monitor or 520 with the viewfinder under CIPA conditions; Photography Blog's launch review instead reports a 610-shot claim. Main figure follows the current maker table.
ChargingUSB charging/camera power with compatible PD supply; optional BG-R10 grip accepts two batteriesIn-camera USB-C charging and USB Power Delivery
DimensionsApproximately 138.4 × 98.4 × 88.4 mm (width × height × depth)Approximately 131.3 × 96.4 × 79.8 mm; 69.7 mm depth from grip to monitor
Weight detail588 g body only, excluding body cap and shoe cover; approximately 670 g including battery and one card; pictured kit lens excludedApproximately 573 g body only; current Sony specifications give 658 g with battery and memory card. Photography Blog incorrectly describes the loaded figure as excluding battery/card; it is not used as body weight.
MaterialsMagnesium-alloy chassis with glass-fibre polycarbonate outer panels–

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