• APS-C 337.5mm2
  • 32.5 megapixels
  • ISO 100 - 25,600
  • 35mm 847.3mm2
  • 12.1 megapixels
  • ISO 80 - 102,400

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Differences

Canon 90D advantages over Sony A7S III

  • Less expensive
    $1349 vs $3198*
    Save money for lenses or accessories
  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More pixels
    32.5 vs 12.1 megapixels
    Higher resolution photos
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Sony A7S III advantages over Canon 90D

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Slower slow-motion
    240 fps vs 120 fps
    Supports slower slow-mo
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 8.40 vs 3.23 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Higher-res screen
    480k vs 347k pixels
    More detail on the screen lets you judge focus and composition
  • More viewfinder magnification
    0.90x vs 0.59x
    Get a bigger view of the scene through the eye-level viewfinder
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Higher extended ISO
    409600 vs 51200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Tilt-swivel screen
    Both provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Headphone jack
    Both provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • Built-in GPS
    Neither provide
    Geotag your photos

User reviews

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Review Excerpt

  • Highest resolution Canon APS-C camera yet; Great image quality; Faster 10fps burst shooting; Very fast autofocus; Dual Pixel CMOS AF in Live View; 4K video; 1080p120 slow-mo video.

  • Low-pass filter reduces fine detail from high-res sensor; High ISO performance isn't as good as some rival cameras; Video recording limited to 29:59.

  • Read our Canon 90D Review

The Competition

Compared to Canon 80D

Canon 90D
Canon 80D
  • $1099
  • APS-C
  • Shoot 4K video
  • Built-in Bluetooth
  • $935
  • APS-C
  • Less expensive
  • Bigger pixels

Compare Canon 90D vs Canon 80D

Sony A7S III
Canon 80D
  • $3348
  • 35mm
  • Focus peaking
  • Larger sensor
  • $935
  • APS-C
  • Less expensive
  • Lens selection

Compare Sony A7S III vs Canon 80D

Compared to Canon 77D

Canon 90D
Canon 77D
  • $1099
  • APS-C
  • Shoot 4K video
  • Longer stills battery life
  • $550
  • APS-C
  • Less expensive
  • NFC

Compare Canon 90D vs Canon 77D

Sony A7S III
Canon 77D
  • $3348
  • 35mm
  • Focus peaking
  • Larger sensor
  • $550
  • APS-C
  • Less expensive
  • Lens selection

Compare Sony A7S III vs Canon 77D

Compared to Nikon D7500

Canon 90D
Nikon D7500
  • $1099
  • APS-C
  • Tilt-swivel screen
  • On-sensor phase detect
  • $797
  • APS-C
  • Less expensive
  • Bigger pixels

Compare Canon 90D vs Nikon D7500

Sony A7S III
Nikon D7500
  • $3348
  • 35mm
  • Focus peaking
  • Larger sensor
  • $797
  • APS-C
  • Less expensive
  • Lens selection

Compare Sony A7S III vs Nikon D7500

Compared to Sony A9 II

Canon 90D
Sony A9 II
  • $1099
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $4498
  • 35mm
  • Focus peaking
  • Larger sensor

Compare Canon 90D vs Sony A9 II

Sony A7S III
Sony A9 II
  • $3348
  • 35mm
  • Less expensive
  • Tilt-swivel screen
  • $4498
  • 35mm
  • On-sensor phase detect
  • More pixels

Compare Sony A7S III vs Sony A9 II

Compared to Canon R6

Canon 90D
Canon R6
  • $1099
  • APS-C
  • Less expensive
  • More telephoto lens reach
  • $2149
  • 35mm
  • Focus peaking
  • Larger sensor

Compare Canon 90D vs Canon R6

Sony A7S III
Canon R6
  • $3348
  • 35mm
  • Slower slow-motion
  • Bigger pixels
  • $2149
  • 35mm
  • Less expensive
  • On-sensor phase detect

Compare Sony A7S III vs Canon R6

Compare Other Cameras?