• APS-C 337.5mm2
  • 20.2 megapixels
  • ISO 100 - 12,800
  • 35mm 847.3mm2
  • 12.2 megapixels
  • ISO 100 - 102,400

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Differences

Canon 70D advantages over Sony A7S

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $929 vs $1998*
    Save money for lenses or accessories
  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Fast startup
    ~0.70 vs 2.0 sec
    Faster startup lets you catch the moment
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 920 vs 380 shots
    Capture more photos
  • 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
    20.2 vs 12.2 megapixels
    Higher resolution photos
  • Faster JPEG shooting
    6.7 fps vs 5.0 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    6.7 fps vs 5.0 fps
    Faster RAW shooting in burst mode

Sony A7S advantages over Canon 70D

  • 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.
  • Bigger pixels
    ~ 8.40 vs 4.11 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 effective ISO
    3,702 vs 926 iso
    Take photos in low light with less noise
  • More dynamic range
    13.2 vs 11.6 evs
    Retain detail in highlight and shadows
  • Thinner
    48 mm vs 78 mm
    Thinner
  • More viewfinder magnification
    0.71x vs 0.59x
    Get a bigger view of the scene through the eye-level viewfinder
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Bigger RAW buffer
    39 vs 14 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    409600 vs 25600 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
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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 Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Dual card slots
    Neither provide
    Gives you more storage flexibility

User reviews

Buy From

Review Excerpt

  • Dual Pixel CMOS AF delivers full-time continuous autofocus (with phase detect at every pixel in framing area) for video and Live View still shooting; Full HD (1080p) video recording with pro-level features and quality; Improved resolution and good high ISO performance; Excellent Wi-Fi remote shooting with full exposure controls; 3-inch articulating LCD touchscreen.

  • Image quality only improved slightly over 60D; Dynamic range still lags behind competing models; May not feature enough upgrades to convince people to step up from 60D.

  • Outstanding high ISO performance; excellent dynamic range; 4K video recording (via uncompressed HDMI); XAVC S option for HD video; Slightly improved battery life over A7/A7R; Built-in Wi-Fi & NFC connectivity.

  • 4K video requires expensive external recorder; Sluggish startup time; Loud shutter; Silent Shooting mode hurts image quality; Lacks a built-in, pop-up flash; Limited selection of native Sony FE lenses.

The Competition

Compared to Nikon D7100

Canon 70D
Nikon D7100
  • $912
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $795
  • APS-C
  • Fast startup
  • Higher effective ISO
Sony A7S
Nikon D7100
  • $1998
  • 35mm
  • Focus peaking
  • Larger sensor
  • $795
  • APS-C
  • Lens selection
  • Less expensive

Compared to Leica M-E (Typ 220)

Canon 70D
Leica M-E (Typ 220)
  • $912
  • APS-C
  • Lens selection
  • Less expensive
  • $4409
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7S
Leica M-E (Typ 220)
  • $1998
  • 35mm
  • Lens selection
  • Less expensive
  • $4409
  • 35mm
  • Thinner
  • More pixels

Compared to Pentax K-3

Canon 70D
Pentax K-3
  • $912
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
Sony A7S
Pentax K-3
  • $1998
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $699
  • APS-C
  • Lens selection
  • Less expensive

Compared to Canon 7D Mark II

Canon 70D
Canon 7D Mark II
  • $912
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $1216
  • APS-C
  • Fast startup
  • Higher effective ISO
Sony A7S
Canon 7D Mark II
  • $1998
  • 35mm
  • Focus peaking
  • Larger sensor
  • $1216
  • APS-C
  • Lens selection
  • Fast startup

Compared to Sony A7S II

Canon 70D
Sony A7S II
  • $912
  • APS-C
  • Lens selection
  • Less expensive
  • $2198
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7S
Sony A7S II
  • $1998
  • 35mm
  • Fast startup
  • Higher effective ISO
  • $2198
  • 35mm
  • In-Camera Image Stabilization
  • Shoot 4K video
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