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Sony a7 IVvsCanon EOS R6 Mark II: Head-to-Head

The Sony a7 IV and Canon EOS R6 Mark II are full-frame mirrorless cameras priced identically at $2,499. Choosing between them comes down to whether you prioritize higher photo resolution and lighter weight or faster continuous shooting and advanced autofocus tracking.

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Intro

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Best for

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Biggest differences

  • Continuous shooting (electronic)

    Canon EOS R6 Mark II leads

    4×

    higher is better

    • Sony a7 IV10 fps
    • Canon EOS R6 Mark II40 fps

  • Native ISO maximum

    Canon EOS R6 Mark II leads

    2×

    higher is better

    • Sony a7 IV51,200 ISO
    • Canon EOS R6 Mark II102,400 ISO

  • 4K max frame rate (full width)

    Canon EOS R6 Mark II leads

    2×

    higher is better

    • Sony a7 IV30 fps
    • Canon EOS R6 Mark II60 fps

  • In-body image stabilization

    Canon EOS R6 Mark II leads

    +45%

    higher is better

    • Sony a7 IV5.5 stops
    • Canon EOS R6 Mark II8 stops

Where each one wins

  • Sony a7 IV

    • Effective pixels
    • Viewfinder magnification
    • Weight
    • Width
    • Height
    • Depth
    • HDMI port type

  • Canon EOS R6 Mark II

    • Launch price
    • Native ISO maximum
    • In-body image stabilization
    • Continuous shooting (mechanical)
    • Continuous shooting (electronic)
    • 4K max frame rate (full width)
    • Raw video recording
    • Screen size
    • Rear screen resolution
    • Battery life

What both have

  • Sensor formatFull-frame
  • Sensor typeCMOS
  • Max mechanical shutter speed8,000 1/s
  • Max video resolution4K
  • 4K max frame rate60 fps
  • Video codecsH.264, HEVC
  • Video bit depth10 bit
  • Log profile support✓
  • Viewfinder resolution3.69 M dots
  • Screen articulationFully articulated
  • Memory card slots2 slots
  • Weather sealingDust and drip resistant
  • USB charging & power delivery✓
  • Minimum operating temperature0 °C
  • Headphone port✓

Every spec

Red marks the better value in each row.

SpecSony a7 IVCanon EOS R6 Mark II
Overview

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Overview specs

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Release date2021-10Not published
Launch price2,499.99 USD2,499 USD
Lens mountSony ECanon RF
High resolution pixel-shift modeNoNot published
Sensor & Image

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Sensor & Image specs

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Effective pixels33 MP24.2 MP
Sensor formatFull-frameFull-frame
Native ISO maximum51,200 ISO1102,400 ISO2
In-body image stabilization5.5 stops38 stops4
Sensor readout speedNot publishedNot published
Sensor typeCMOSCMOS
Aspect ratios3:23:2, 4:3, 1:1, 16:9
Lens & Autofocus

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Lens & Autofocus specs

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Continuous shooting (mechanical)10 fps512 fps
Continuous shooting (electronic)10 fps40 fps
Max mechanical shutter speed8,000 1/s8,000 1/s
Pre-burst capture durationNot published0.5 s6
AF subject detectionHuman, animal, birdHuman, animal, bird, car, train, airplane, motorcycle
Video

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Video specs

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Max video resolution4K4K
4K max frame rate60 fps760 fps
Video codecsH.264, HEVCH.264, HEVC8
4K max frame rate (full width)30 fps960 fps
Raw video recordingNone10External11
Video bit depth10 bit10 bit12
Log profile supportYesYes
Video dynamic range (log)15 stops13Not published
Viewfinder & Screen

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Viewfinder & Screen specs

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Viewfinder resolution3.69 M dots3.69 M dots
Viewfinder magnification0.78 x0.76 x
Screen size2.95 in143 in
Screen articulationFully articulatedFully articulated
Rear screen resolution1.04 M dots151.62 M dots
Handling & Power

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Handling & Power specs

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Battery life580 shots16760 shots17
Memory card slots2 slots2 slots
Weather sealingDust and drip resistant18Dust and drip resistant19
Weight658 g670 g
Width131.3 mm138.4 mm
Height96.4 mm98.4 mm
Depth69.7 mm2088.4 mm
USB charging & power deliveryYes21Yes22
Minimum operating temperature0 °C0 °C23
Headphone portYesYes
HDMI port typeFull-sizeMicro
Notes on 23 values — test conditions and caveats
  1. 1Sony a7 IV, Native ISO maximum: Native range tops out at ISO 51200; 50-204800 requires expanded ISO settings.
  2. 2Canon EOS R6 Mark II, Native ISO maximum: ISO 204800 (H) is an expanded setting; the native range tops out at ISO 102400.
  3. 3Sony a7 IV, In-body image stabilization: CIPA rating measured with the 50mm F1.4 ZA test lens attached.
  4. 4Canon EOS R6 Mark II, In-body image stabilization: The 8-stop rating combines lens optical IS with in-body IS; results vary by lens.
  5. 5Sony a7 IV, Continuous shooting (mechanical): 10 fps applies to compressed RAW/JPEG/HEIF; drops to 6 fps for lossless or uncompressed RAW.
  6. 6Canon EOS R6 Mark II, Pre-burst capture duration: Pre-release capture works in RAW burst mode and buffers up to 0.5s of action before full shutter press.
  7. 7Sony a7 IV, 4K max frame rate: 4K 60p is only available in Super35mm crop; full-frame 4K tops out at 30p.
  8. 8Canon EOS R6 Mark II, Video codecs: Movies record H.264 by default; H.265/HEVC is used when Canon Log 3 or HDR PQ is enabled.
  9. 9Sony a7 IV, 4K max frame rate (full width): 4K 60p requires the Super35mm crop; full-width 4K is limited to 30p.
  10. 10Sony a7 IV, Raw video recording: No internal or external raw recording; HDMI output tops out at 10-bit 4:2:2.
  11. 11Canon EOS R6 Mark II, Raw video recording: 6K ProRes RAW requires an external Atomos Ninja V+ recorder connected over HDMI.
  12. 12Canon EOS R6 Mark II, Video bit depth: Standard profiles record 8-bit 4:2:0; 10-bit 4:2:2 requires Canon Log 3 or HDR PQ.
  13. 13Sony a7 IV, Video dynamic range (log): Sony's claim for S-Log3 per internal tests; stated as 15+ stops.
  14. 14Sony a7 IV, Screen size: Sony rates the panel at 2.95in (3.0-type); most sources round to 3in.
  15. 15Sony a7 IV, Rear screen resolution: 1,036,800 dots; Sony's retail pages round this to 1.03 megadots.
  16. 16Sony a7 IV, Battery life: 580 shots per charge with the rear LCD; 520 with the EVF.
  17. 17Canon EOS R6 Mark II, Battery life: 760 shots is the CIPA power-saving rating with the rear LCD; Canon's smooth-mode rating is 580 shots.
  18. 18Sony a7 IV, Weather sealing: Dust and moisture resistant but not IP-rated; Sony does not guarantee 100% sealing.
  19. 19Canon EOS R6 Mark II, Weather sealing: Sealed dust- and water-resistant build, not IP-rated; Canon cautions ingress cannot be fully prevented.
  20. 20Sony a7 IV, Depth: Sony lists 79.8mm total depth; 69.7mm is measured from front grip to rear monitor.
  21. 21Sony a7 IV, USB charging & power delivery: Charging and USB power delivery work only through the USB Type-C port.
  22. 22Canon EOS R6 Mark II, USB charging & power delivery: In-body USB charging and power supply require Canon's optional PD-E1 USB power adapter.
  23. 23Canon EOS R6 Mark II, Minimum operating temperature: Canon's product manual rates 0–40°C; regional Canon spec sheets list a 2°C minimum.

Resolution and Speed

The Sony features 33 megapixels, giving it an edge in detail over the Canon's 24.2 megapixels. This extra resolution helps when cropping images or printing large formats.

For action, the Canon wins decisively with 40 fps electronic shooting and 12 fps mechanical bursts, compared to 10 fps on the Sony. The Canon also adds pre-release capture buffering up to 0.5 seconds of action before the full shutter press, making it better for unpredictable subjects.

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Resolution and Speed

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Autofocus and Stabilization

The Canon broadens subject detection to include cars, trains, airplanes, and motorcycles alongside humans, animals, and birds, whereas the Sony tracks humans, animals, and birds. Both handle standard subjects well, but the Canon suits motorsports and aviation.

Stabilization also favors the Canon with an 8-stop rating combining optical and in-body IS. The Sony relies on a 5.5-stop in-body system, meaning the Canon holds an advantage for handheld low-light photography.

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Autofocus and Stabilization

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Video Capabilities

Both cameras shoot 4K video at 60 fps, but the Sony requires a Super35mm crop to reach 60p, limiting full-width 4K to 30 fps. The Canon shoots full-width 4K at 60 fps without a crop.

For post-production flexibility, the Canon supports external 6K ProRes RAW recording via an Atomos Ninja V+ over HDMI, while the Sony offers no raw video output and limits HDMI to 10-bit 4:2:2.

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Video Capabilities

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Handling and Ports

The Sony is lighter at 658 g and has a more compact body with smaller width, height, and depth dimensions than the Canon's 670 g build. Photographers seeking a smaller kit will prefer the Sony dimensions.

Connectivity differs in port design. The Sony uses a full-size HDMI port for robust cable connections, while the Canon relies on a smaller micro HDMI port.

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Handling and Ports

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The Verdict

Buy the Sony a7 IV if you want higher resolution for detailed landscapes and a lighter, more compact body. Buy the Canon EOS R6 Mark II if you need blistering speed, extensive subject tracking, uncropped full-width 4K 60p video, and superior image stabilization.

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Verdict

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Where to buy

FAQ

Do both cameras have dual card slots?

Yes, both models feature two memory card slots.

What is the maximum continuous shooting speed in electronic mode?

The Sony reaches 10 fps, while the Canon reaches 40 fps.

Do they support log video profiles?

Yes, both models support log profile recording for increased dynamic range in video.

Are the bodies weather sealed?

Both cameras feature dust and drip resistant builds, though neither carries an IP rating.

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FAQ

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