• APS-C 366.6mm2
  • 24.1 megapixels
  • ISO 100 - 6400
  • APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 12,800

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Differences

Nikon D7100 advantages over Canon EOS M3

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Larger sensor
    APS-C vs APS-C
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Fast startup
    ~0.30 vs 2.4 sec
    Faster startup lets you catch the moment
  • More dynamic range
    13.7 vs 11.8 evs
    Retain detail in highlight and shadows
  • Longer stills battery life
    More info 950 vs 250 shots
    Capture more photos
  • More telephoto lens reach
    158 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
  • 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
    5.8 fps vs 4.2 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    5.3 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light

Canon EOS M3 advantages over Nikon D7100

  • Less expensive
    $549 vs $870
    Save money for lenses or accessories
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Thinner
    44 mm vs 76 mm
    Thinner
  • Less shutter lag
    0.13 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
    Unlimited vs 12 shots
    Take more JPEG shots before waiting (burst mode)

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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Nikon D7100

Your purchases support this site

Buy the Canon EOS M3

Review Excerpt

  • Solid, ergonomic body design; Stunning, highly detailed photos, thanks to 24.1MP sensor upgrade and removal of optical low-pass filter; Cool 1.3x crop mode extends reach to nearly 2x the full-frame equivalent; Records Full 1080p HD video at up to 30fps with full-time AF; Many pro-level features packed into a consumer-friendly body at reasonable price.

  • Shallow buffer that hampers continuous burst shooting; AF slightly slower than average for its class; No real-time aperture control while in Movie mode (among other quirks); More noticeable moire patterns and aliasing artifacts (but only found when shooting fabrics with strong, distinct patterns).

  • 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 70D

Nikon D7100
Canon 70D
  • $695
  • APS-C
  • Fast startup
  • Higher effective ISO
  • $999
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Canon EOS M3
Canon 70D
  • $429
  • APS-C
  • Less expensive
  • Focus peaking
  • $999
  • APS-C
  • Lens selection
  • Tilt-swivel screen

Compared to Pentax K-3

Nikon D7100
Pentax K-3
  • $695
  • APS-C
  • Fast startup
  • Longer stills battery life
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
Canon EOS M3
Pentax K-3
  • $429
  • APS-C
  • Touchscreen
  • Tiltable Screen
  • $699
  • APS-C
  • Lens selection
  • Larger sensor

Compared to Nikon D5300

Nikon D7100
Nikon D5300
  • $695
  • APS-C
  • Fast startup
  • Longer stills battery life
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Canon EOS M3
Nikon D5300
  • $429
  • APS-C
  • Focus peaking
  • Less expensive
  • $549
  • APS-C
  • Lens selection
  • Larger sensor

Compared to Sony A5100

Nikon D7100
Sony A5100
  • $695
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $348
  • APS-C
  • Focus peaking
  • Less expensive
Canon EOS M3
Sony A5100
  • $429
  • APS-C
  • More telephoto lens reach
  • External Mic Jack
  • $348
  • APS-C
  • Lens selection
  • Larger sensor

Compared to Fujifilm X-E3

Nikon D7100
Fujifilm X-E3
  • $695
  • APS-C
  • Lens selection
  • Fast startup
  • $699
  • APS-C
  • Less expensive
  • Focus peaking
Canon EOS M3
Fujifilm X-E3
  • $429
  • APS-C
  • Less expensive
  • Tiltable Screen
  • $699
  • APS-C
  • Lens selection
  • Larger sensor
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