• APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 6400
  • APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 12,800

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Differences

Canon 7D advantages over Canon EOS M3

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 4.30 vs 3.72 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.40 vs 2.4 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 800 vs 250 shots
    Capture more photos
  • More telephoto lens reach
    216 mm vs 88 mm
    Capture objects farther away with the kit lens
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • Faster JPEG shooting
    8.0 fps vs 4.2 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    8.0 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    16 vs 4 shots
    Larger buffer for RAW shots (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light

Canon EOS M3 advantages over Canon 7D

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Less expensive
    $549 vs $1549
    Save money for lenses or accessories
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Higher effective ISO
    1,169 vs 854 iso
    Take photos in low light with less noise
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Thinner
    44 mm vs 73 mm
    Thinner
  • Newer
    3 years vs 9 years old
    Newer cameras often support more advanced features
  • More pixels
    24.2 vs 18.0 megapixels
    Higher resolution photos
  • Wider angle kit lens
    29 mm vs 45 mm
    Capture more of the scene with the included lens
  • Bigger JPEG buffer
    Unlimited vs 22 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Canon 7D

Your purchases support this site

Buy the Canon EOS M3

Review Excerpt

  • Excellent 18-megapixel sensor with impressively low noise and superb detail; Very good high ISO performance, especially for 18-megapixel subframe sensor; Rugged construction with magnesium body and weather sealing; Fast autofocus and fast burst rate of 8 fps; Full HD (1920x1080) movies at 30/25/24p, 60/50p at 1280x720.

  • No dedicated AF-assist lamp (flash is used), and AF-assist adjustment is buried in the Flash Settings menu; Kit lens (28-135mm) isn't quite up to the resolving power of the 18-megapixel sensor, odd focal length for subframe DSLR; No continuous autofocus in Movie mode.

  • DSLR image quality & resolution in a mirrorless body; Higher-res 24MP APS-C sensor; Much improved AF performance; Better ergonomics with full PASM dial; Built-in Wi-Fi & NFC; Tilting LCD.

  • No built-in EVF; Limited native lens selection; Slow burst mode; Shallow buffer depth with RAW files; No 60p video frame rate or 4K video option.

The Competition

Compared to Canon 7D Mark II

Canon 7D
Canon 7D Mark II
  • $1399
  • APS-C
  • Less expensive
  • Less shutter lag
  • $1231
  • APS-C
  • Higher effective ISO
  • Built-in GPS
Canon EOS M3
Canon 7D Mark II
  • $549
  • APS-C
  • Less expensive
  • Focus peaking
  • $1231
  • APS-C
  • Lens selection
  • Eye-level viewfinder

Compared to Canon 60D

Canon 7D
Canon 60D
  • $1399
  • APS-C
  • More cross-type AF points
  • Less shutter lag
  • $999
  • APS-C
  • Tilt-swivel screen
  • Longer stills battery life
Canon EOS M3
Canon 60D
  • $549
  • APS-C
  • Less expensive
  • Focus peaking
  • $999
  • APS-C
  • Lens selection
  • Tilt-swivel screen

Compared to Nikon D7000

Canon 7D
Nikon D7000
  • $1399
  • APS-C
  • More telephoto lens reach
  • More cross-type AF points
  • $699
  • APS-C
  • Larger sensor
  • Higher effective ISO
Canon EOS M3
Nikon D7000
  • $549
  • APS-C
  • Focus peaking
  • Touchscreen
  • $699
  • APS-C
  • Lens selection
  • Larger sensor

Compared to Pentax K-5

Canon 7D
Pentax K-5
  • $1399
  • APS-C
  • Fast startup
  • More telephoto lens reach
  • $774
  • APS-C
  • Less expensive
  • Larger sensor
Canon EOS M3
Pentax K-5
  • $549
  • APS-C
  • Focus peaking
  • Less expensive
  • $774
  • APS-C
  • Lens selection
  • Larger sensor

Compared to Samsung NX3000

Canon 7D
Samsung NX3000
  • $1399
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $699
  • APS-C
  • Larger sensor
  • Less expensive
Canon EOS M3
Samsung NX3000
  • $549
  • APS-C
  • Focus peaking
  • Less expensive
  • $699
  • APS-C
  • Larger sensor
  • Bigger pixels
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