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Compare · 3 of 4 products

Canon EOS R6 Mark IIIvsSony a7 IVvsCanon EOS R8

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Biggest differences

  • Continuous shooting (electronic)

    Canon EOS R6 Mark III & Canon EOS R8 tie for the lead

    4×

    higher is better

    • Canon EOS R6 Mark III40 fps
    • Sony a7 IV10 fps
    • Canon EOS R840 fps

  • 4K max frame rate (full width)

    Canon EOS R6 Mark III leads

    4×

    higher is better

    • Canon EOS R6 Mark III120 fps
    • Sony a7 IV30 fps
    • Canon EOS R860 fps

  • Memory card slots

    Canon EOS R6 Mark III & Sony a7 IV tie for the lead

    2×

    higher is better

    • Canon EOS R6 Mark III2 slots
    • Sony a7 IV2 slots
    • Canon EOS R81 slots

  • Battery life

    Canon EOS R6 Mark III leads

    +68%

    higher is better

    • Canon EOS R6 Mark III620 shots
    • Sony a7 IV580 shots
    • Canon EOS R8370 shots

Where each one wins

  • Canon EOS R6 Mark III

    • In-body image stabilization
    • Continuous shooting (mechanical)
    • Continuous shooting (electronic)
    • Max mechanical shutter speed
    • Max video resolution
    • 4K max frame rate
    • 4K max frame rate (full width)
    • Raw video recording
    • Viewfinder resolution
    • Screen size
    • Battery life
    • Memory card slots
    • HDMI port type

  • Sony a7 IV

    • Launch price
    • Effective pixels
    • Max mechanical shutter speed
    • Viewfinder resolution
    • Viewfinder magnification
    • Memory card slots
    • Width
    • Depth
    • HDMI port type

  • Canon EOS R8

    • Native ISO maximum
    • Continuous shooting (electronic)
    • Screen size
    • Rear screen resolution
    • Weight
    • Height

What all 3 have

  • Sensor formatFull-frame
  • Sensor typeCMOS
  • Video bit depth10 bit
  • Log profile support✓
  • Screen articulationFully articulated
  • 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.

Overview

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Overview specs

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Release date

  • 2025-11
  • 2021-10
  • Not published

Launch price

  • 2,799 USD
  • 2,499.99 USD
  • Not published

Lens mount

  • Canon RF
  • Sony E
  • Canon RF

High resolution pixel-shift mode

  • No
  • No
  • No

Sensor & Image

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Sensor & Image specs

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Effective pixels

  • 32.5 MP
  • 33 MP
  • 24.2 MP

Sensor format

  • Full-frame
  • Full-frame
  • Full-frame

Native ISO maximum

  • 64,000 ISO
  • 51,200 ISO1
  • 102,400 ISO

In-body image stabilization

  • 8.5 stops2
  • 5.5 stops3
  • 0 stops

Sensor readout speed

  • 13.2 ms
  • Not published
  • Not published

Sensor type

  • CMOS
  • CMOS
  • CMOS

Aspect ratios

  • 3:2
  • 3:2
  • 3:2, 4:3, 1:1, 16:9

Lens & Autofocus

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Lens & Autofocus specs

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Continuous shooting (mechanical)

  • 12 fps
  • 10 fps4
  • 6 fps

Continuous shooting (electronic)

  • 40 fps
  • 10 fps
  • 40 fps

Max mechanical shutter speed

  • 8,000 1/s
  • 8,000 1/s
  • 4,000 1/s

Pre-burst capture duration

  • 0.5 s5
  • Not published
  • 0.5 s

AF subject detection

  • Human, animal, bird, car, train, airplane, motorcycle6
  • Human, animal, bird
  • Human, animal, bird, car, train, airplane, motorcycle

Video

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Video specs

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Max video resolution

  • 7K7
  • 4K
  • 4K

4K max frame rate

  • 119.9 fps
  • 60 fps8
  • 60 fps

Video codecs

  • H.264, HEVC, XF-AVC, XF-HEVC
  • H.264, HEVC
  • H.264, HEVC

4K max frame rate (full width)

  • 120 fps9
  • 30 fps10
  • 60 fps

Raw video recording

  • Internal
  • None11
  • None

Video bit depth

  • 10 bit
  • 10 bit
  • 10 bit

Log profile support

  • Yes
  • Yes
  • Yes

Video dynamic range (log)

  • 15 stops12
  • 15 stops13
  • Not published

Viewfinder & Screen

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Viewfinder & Screen specs

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Viewfinder resolution

  • 3.69 M dots
  • 3.69 M dots
  • 2.36 M dots

Viewfinder magnification

  • 0.76 x
  • 0.78 x
  • 0.7 x

Screen size

  • 3 in
  • 2.95 in14
  • 3 in

Screen articulation

  • Fully articulated
  • Fully articulated
  • Fully articulated

Rear screen resolution

  • 1.6 M dots
  • 1.04 M dots15
  • 1.62 M dots

Handling & Power

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Handling & Power specs

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Which products? Tick all that apply, or none if you are not sure.

Battery life

  • 620 shots16
  • 580 shots17
  • 370 shots

Memory card slots

  • 2 slots
  • 2 slots
  • 1 slots

Weather sealing

  • Dust and drip resistant
  • Dust and drip resistant18
  • Dust and drip resistant

Weight

  • 699 g
  • 658 g
  • 461 g

Width

  • 138.4 mm
  • 131.3 mm
  • 132.5 mm

Height

  • 98.4 mm
  • 96.4 mm
  • 86.1 mm

Depth

  • 88.4 mm
  • 69.7 mm19
  • 70 mm

USB charging & power delivery

Minimum operating temperature

  • 0 °C
  • 0 °C
  • 0 °C

Headphone port

  • Yes
  • Yes
  • Yes

HDMI port type

  • Full-size
  • Full-size
  • Micro
Notes on 21 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 III, In-body image stabilization: 8.5 stops is Canon's best-case center rating with certain RF lenses; peripheral and other lenses see less, down to 7.5 stops.
  3. 3Sony a7 IV, In-body image stabilization: CIPA rating measured with the 50mm F1.4 ZA test lens attached.
  4. 4Sony a7 IV, Continuous shooting (mechanical): 10 fps applies to compressed RAW/JPEG/HEIF; drops to 6 fps for lossless or uncompressed RAW.
  5. 5Canon EOS R6 Mark III, Pre-burst capture duration: Works only in the 40 fps electronic-shutter mode; Canon states it as up to 20 frames.
  6. 6Canon EOS R6 Mark III, AF subject detection: Car detection is tuned for racing cars, per Canon.
  7. 7Canon EOS R6 Mark III, Max video resolution: 7K is available only in RAW Video mode; standard MP4 recording tops out at 4K.
  8. 8Sony a7 IV, 4K max frame rate: 4K 60p is only available in Super35mm crop; full-frame 4K tops out at 30p.
  9. 9Canon EOS R6 Mark III, 4K max frame rate (full width): 4K 120p uses the full width but is not oversampled; oversampled 4K tops out at 60p.
  10. 10Sony a7 IV, 4K max frame rate (full width): 4K 60p requires the Super35mm crop; full-width 4K is limited to 30p.
  11. 11Sony a7 IV, Raw video recording: No internal or external raw recording; HDMI output tops out at 10-bit 4:2:2.
  12. 12Canon EOS R6 Mark III, Video dynamic range (log): Canon's claim of 15+ stops in its Canon Log profiles, not a lab measurement.
  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. 16Canon EOS R6 Mark III, Battery life: 620 shots is CIPA's rating using the rear LCD (not the viewfinder) at 23°C; real-world results vary.
  17. 17Sony a7 IV, Battery life: 580 shots per charge with the rear LCD; 520 with the EVF.
  18. 18Sony a7 IV, Weather sealing: Dust and moisture resistant but not IP-rated; Sony does not guarantee 100% sealing.
  19. 19Sony a7 IV, Depth: Sony lists 79.8mm total depth; 69.7mm is measured from front grip to rear monitor.
  20. 20Canon EOS R6 Mark III, USB charging & power delivery: USB-C charging and power need a capable USB-PD source such as Canon's PD-E2; not every power bank works.
  21. 21Sony a7 IV, USB charging & power delivery: Charging and USB power delivery work only through the USB Type-C port.

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