• APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 25,600
  • 35mm 861.6mm2
  • 42.4 megapixels
  • ISO 100 - 32,000

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Differences

Canon 77D advantages over Sony A7R III

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $949 vs $3996
    Save money for lenses or accessories
  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Fast startup
    ~0.40 vs 1.7 sec
    Faster startup lets you catch the moment
  • 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
  • Less shutter lag
    0.09 vs 0.25 sec
    Focus and take a photo quickly (wide angle)
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Bigger JPEG buffer
    167 vs 82 shots
    Take more JPEG shots before waiting (burst mode)

Sony A7R III advantages over Canon 77D

  • 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.
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 4.51 vs 3.72 microns
    Better low-light and dynamic range (all else equal)
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Better color depth
    26.0 vs 23.6 bits
    Capture richer, more accurate colors
  • Higher effective ISO
    3,523 vs 971 iso
    Take photos in low light with less noise
  • More dynamic range
    14.7 vs 13.3 evs
    Retain detail in highlight and shadows
  • Newer
    11 months vs 19 months old
    Newer cameras often support more advanced features
  • More viewfinder magnification
    0.78x vs 0.51x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    42.4 vs 24.2 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Faster JPEG shooting
    9.9 fps vs 6.0 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    9.2 fps vs 6.0 fps
    Faster RAW shooting in burst mode
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    102400 vs 51200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • NFC
    Both provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Both provide
    Usually improves live view and video AF performance
  • 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
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Built-in GPS
    Neither provide
    Geotag your photos

User reviews

Buy From

Your purchases support this site

Buy the Canon 77D

Your purchases support this site

Buy the Sony A7R III

Review Excerpt

  • Very good image quality; Improved dynamic range at low ISOs; Very fast autofocus; Dual Pixel CMOS AF in Live View; Much improved RAW buffer depth; 1080/60p video; Quick Control Dial & top-panel LCD screen.

  • Default JPEGs slightly soft straight out of camera; Dynamic range & high ISOs lag behind competing cameras; No 4K video resolution.

  • Fantastic image quality; Improved dynamic range over its predecessor; Very good high ISO performance; Much improved real-world AF performance; Class-leading burst rates, even with RAW; Improved 5-axis in-body image stabilization; Better 4K video quality; 1080/120fps video; Dual card slots; Significantly better battery life.

  • Expensive; Menus still confusing; UHS-II support only on one card slot; No optical low-pass filter means greater risk of moire; No built-in flash; Buffer clearing still slow despite UHS-II support.

The Competition

Compared to Canon T6s

Canon 77D
Canon T6s
  • $799
  • APS-C
  • Fast startup
  • Built-in Bluetooth
  • $757
  • APS-C
  • Bigger JPEG buffer
Sony A7R III
Canon T6s
  • $3070
  • 35mm
  • Focus peaking
  • Larger sensor
  • $757
  • APS-C
  • Lens selection
  • Less expensive

Compared to Sony A7R II

Canon 77D
Sony A7R II
  • $799
  • APS-C
  • Lens selection
  • Less expensive
  • $1865
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7R III
Sony A7R II
  • $3070
  • 35mm
  • Touchscreen
  • High resolution composite
  • $1865
  • 35mm
  • Less expensive
  • In-camera panoramas

Compared to Pentax K-70

Canon 77D
Pentax K-70
  • $799
  • APS-C
  • Touchscreen
  • Fast startup
  • $595
  • APS-C
  • Less expensive
  • Focus peaking
Sony A7R III
Pentax K-70
  • $3070
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $595
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Nikon D7500

Canon 77D
Nikon D7500
  • $799
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $1147
  • APS-C
  • Larger sensor
  • Shoot 4K video
Sony A7R III
Nikon D7500
  • $3070
  • 35mm
  • Focus peaking
  • Larger sensor
  • $1147
  • APS-C
  • Lens selection
  • Less expensive

Compared to Canon EOS R

Canon 77D
Canon EOS R
  • $799
  • APS-C
  • Less expensive
  • Fast startup
  • $2299
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7R III
Canon EOS R
  • $3070
  • 35mm
  • In-Camera Image Stabilization
  • High resolution composite
  • $2299
  • 35mm
  • Less expensive
  • Tilt-swivel screen
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