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Sony a7 IVvsCanon EOS R100: Which is Better?

Both the Sony a7 IV and the Canon EOS R100 record video in 4K resolution and use interchangeable lenses on distinct mounts. The choice between them rests on sensor size, video features, and body handling.

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Intro

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  • MOST WINS
    Sony

    Sony a7 IV

    Best for Advanced creators needing full-frame performance, dual slots, and 10-bit video

    20of 25 specs better
    View on eBay · $1,998.00
  • Canon

    Canon EOS R100

    Best for Beginners looking for a lightweight, straightforward entry-level camera

    5of 25 specs better

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Best for

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

Biggest differences

  • Native ISO maximum

    Sony a7 IV leads

    4×

    higher is better

    • Sony a7 IV51,200 ISO
    • Canon EOS R10012,800 ISO

  • Memory card slots

    Sony a7 IV leads

    2×

    higher is better

    • Sony a7 IV2 slots
    • Canon EOS R1001 slots

  • Weight

    Canon EOS R100 leads

    −46%

    lower is better

    • Sony a7 IV658 g
    • Canon EOS R100356 g

  • 4K max frame rate

    Sony a7 IV leads

    2.4×

    higher is better

    • Sony a7 IV60 fps
    • Canon EOS R10025 fps

Features not all of them have

Log profile support

  • Sony a7 IV✓
  • Canon EOS R100✕

USB charging & power delivery

  • Sony a7 IV✓
  • Canon EOS R100✕

Headphone port

  • Sony a7 IV✓
  • Canon EOS R100✕

Where each one wins

  • Sony a7 IV

    • Effective pixels
    • Sensor format
    • Native ISO maximum
    • In-body image stabilization
    • Continuous shooting (mechanical)
    • Continuous shooting (electronic)
    • Max mechanical shutter speed
    • 4K max frame rate
    • 4K max frame rate (full width)
    • Video bit depth
    • Log profile support
    • Viewfinder resolution
    • Viewfinder magnification
    • Screen articulation
    • Battery life
    • Memory card slots
    • Weather sealing
    • USB charging & power delivery
    • Headphone port
    • HDMI port type

  • Canon EOS R100

    • Screen size
    • Weight
    • Width
    • Height
    • Depth

What both have

  • Sensor typeCMOS
  • Max video resolution4K
  • Raw video recordingNone
  • Rear screen resolution1.04 M dots
  • Minimum operating temperature0 °C

Every spec

Red marks the better value in each row.

SpecSony a7 IVCanon EOS R100
Overview

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Overview specs

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Release date2021-10Not published
Launch price2,499.99 USDNot published
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 MP24.1 MP
Sensor formatFull-frameAPS-C
Native ISO maximum51,200 ISO112,800 ISO2
In-body image stabilization5.5 stops30 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 fps56.5 fps
Continuous shooting (electronic)10 fps0 fps6
Max mechanical shutter speed8,000 1/s4,000 1/s
Pre-burst capture durationNot publishedNot published
AF subject detectionHuman, animal, birdHuman
Video

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Video specs

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Max video resolution4K4K
4K max frame rate60 fps725 fps
Video codecsH.264, HEVCH.264
4K max frame rate (full width)30 fps80 fps9
Raw video recordingNone10None
Video bit depth10 bit8 bit
Log profile supportYesNo
Video dynamic range (log)15 stops11Not published
Viewfinder & Screen

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Viewfinder & Screen specs

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Viewfinder resolution3.69 M dots2.36 M dots
Viewfinder magnification0.78 x0.59 x12
Screen size2.95 in133 in
Screen articulationFully articulatedFixed
Rear screen resolution1.04 M dots141.04 M dots
Handling & Power

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Handling & Power specs

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Battery life580 shots15430 shots
Memory card slots2 slots1 slots
Weather sealingDust and drip resistant16None
Weight658 g356 g17
Width131.3 mm116.3 mm
Height96.4 mm85.5 mm
Depth69.7 mm1868.8 mm
USB charging & power deliveryYes19No20
Minimum operating temperature0 °C0 °C
Headphone portYesNo
HDMI port typeFull-sizeMicro
Notes on 20 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 R100, Native ISO maximum: ISO 25600 (H) is an expanded setting, not a native sensitivity.
  3. 3Sony a7 IV, In-body image stabilization: CIPA rating measured with the 50mm F1.4 ZA test lens attached.
  4. 4Canon EOS R100, In-body image stabilization: No in-body stabilization; shake correction relies on IS lenses or Movie Digital IS.
  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 R100, Continuous shooting (electronic): The electronic (silent) shutter does not support continuous shooting on this camera.
  7. 7Sony a7 IV, 4K max frame rate: 4K 60p is only available in Super35mm crop; full-frame 4K tops out at 30p.
  8. 8Sony a7 IV, 4K max frame rate (full width): 4K 60p requires the Super35mm crop; full-width 4K is limited to 30p.
  9. 9Canon EOS R100, 4K max frame rate (full width): All 4K recording uses a ~1.6x centre crop, so no full-width 4K mode exists.
  10. 10Sony a7 IV, Raw video recording: No internal or external raw recording; HDMI output tops out at 10-bit 4:2:2.
  11. 11Sony a7 IV, Video dynamic range (log): Sony's claim for S-Log3 per internal tests; stated as 15+ stops.
  12. 12Canon EOS R100, Viewfinder magnification: Canon's 0.95x is quoted with a 50mm lens on APS-C; in 35mm-equivalent terms it is 0.59x.
  13. 13Sony a7 IV, Screen size: Sony rates the panel at 2.95in (3.0-type); most sources round to 3in.
  14. 14Sony a7 IV, Rear screen resolution: 1,036,800 dots; Sony's retail pages round this to 1.03 megadots.
  15. 15Sony a7 IV, Battery life: 580 shots per charge with the rear LCD; 520 with the EVF.
  16. 16Sony a7 IV, Weather sealing: Dust and moisture resistant but not IP-rated; Sony does not guarantee 100% sealing.
  17. 17Canon EOS R100, Weight: CIPA weight: body with battery and memory card, without lens.
  18. 18Sony a7 IV, Depth: Sony lists 79.8mm total depth; 69.7mm is measured from front grip to rear monitor.
  19. 19Sony a7 IV, USB charging & power delivery: Charging and USB power delivery work only through the USB Type-C port.
  20. 20Canon EOS R100, USB charging & power delivery: The battery must be charged in the external LC-E17E charger; no USB power delivery.

Image Quality and Sensor

The Sony a7 IV features a 33-megapixel full-frame sensor that captures more detail and handles low light better than the 24.1-megapixel APS-C sensor on the Canon EOS R100. Photographers also benefit from a native ISO maximum of 51,200 on the Sony compared to 12,800 on the Canon, providing cleaner images in dark environments.

For stability, the Sony includes a 5.5-stop in-body image stabilization system, while the Canon relies entirely on lenses or digital correction since it offers zero stops of body stabilization. Aspect ratio flexibility is broader on the Canon with 3:2, 4:3, 1:1, and 16:9 options, whereas the Sony sticks to a 3:2 format.

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Image Quality and Sensor

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Speed and Autofocus

Action shooters will find the Sony a7 IV much more capable with 10 fps continuous shooting in both mechanical and electronic modes, outperforming the Canon EOS R100 at 6.5 fps mechanically and zero fps electronically. The Sony also reaches a faster maximum mechanical shutter speed of 1/8,000s compared to the Canon limit of 1/4,000s.

Autofocus tracking sets them further apart. The Sony detects humans, animals, and birds, while the Canon tracks human subjects only.

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Speed and Autofocus

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Video Capabilities

Videographers get significantly advanced tools on the Sony a7 IV, including 10-bit color depth, log profile support with 15 stops of dynamic range, and H.264 or HEVC codecs. The Canon EOS R100 limits video production to 8-bit color, H.264 recording, and lacks log profiles.

Frame rates also favor the Sony, which reaches 60 fps in 4K using a Super35mm crop and 30 fps at full width. The Canon tops out at 25 fps in 4K and forces a 1.6x center crop on all 4K recordings.

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Video Capabilities

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Handling and Battery

The Canon EOS R100 wins on physical portability, weighing only 356g with a slimmer body, compared to the 658g Sony a7 IV. However, the Sony packs robust professional features like dual memory card slots, weather sealing, a fully articulated screen, and a larger 580-shot battery life against the Canon's single slot, fixed screen, lack of weather sealing, and 430-shot battery.

Connectivity and power delivery are vastly superior on the Sony with USB-C charging, power delivery, a full-size HDMI port, and a headphone port. The Canon requires an external charger for its battery, lacks USB power delivery, and uses a micro HDMI port without audio monitoring jacks.

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Handling and Battery

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The Verdict

Buy the Sony a7 IV if you need professional video profiles, dual card slots, robust stabilization, and advanced autofocus. Buy the Canon EOS R100 if you want a lightweight, simple camera for basic photography and occasional video.

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Verdict

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Where to buy

  • Sony a7 IV

    Best for Advanced creators needing full-frame performance, dual slots, and 10-bit video

    View on eBay · $1,998.00

  • Canon EOS R100

    Best for Beginners looking for a lightweight, straightforward entry-level camera

FAQ

Can I charge the Canon EOS R100 via USB?

No, the battery must be charged in the external LC-E17E charger, and the camera does not support USB power delivery.

Does the Sony a7 IV support full-width 4K recording at 60 fps?

No, 4K at 60 fps requires a Super35mm crop, while full-width 4K recording is limited to 30 fps.

Does the Canon EOS R100 have a touch screen?

No, the rear screen is fixed and non-touch.

What is the maximum continuous shooting speed of the Sony a7 IV using the electronic shutter?

The electronic shutter achieves 10 fps.

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FAQ

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