• 35mm 861.6mm2
  • 36.3 megapixels
  • ISO 100 - 6400
  • APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 12,800

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Differences

Nikon D800 advantages over Canon EOS M3

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Larger sensor
    35mm 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
  • Bigger pixels
    ~ 4.88 vs 3.72 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.30 vs 2.4 sec
    Faster startup lets you catch the moment
  • Better color depth
    25.3 vs 22.8 bits
    Capture richer, more accurate colors
  • Higher effective ISO
    2,853 vs 1,169 iso
    Take photos in low light with less noise
  • More dynamic range
    14.4 vs 11.8 evs
    Retain detail in highlight and shadows
  • Longer stills battery life
    More info 900 vs 250 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More pixels
    36.3 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
  • Bigger RAW buffer
    18 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 Nikon D800

  • 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 81 mm
    Thinner
  • Lighter weight
    366g vs 1008g
    Lighter weight
  • Less shutter lag
    0.13 vs 0.21 sec
    Focus and take a photo quickly (wide angle)
  • Bigger JPEG buffer
    Unlimited vs 54 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

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Buy the Canon EOS M3

Review Excerpt

  • Rugged build; Excellent controls; Extremely high resolution; Dual cards; Surprising high ISO performance.

  • Very large files; Slower frame rate; Custom white balance gives a greenish tint; Battery life lower than D700.

  • 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 5D Mark III

Nikon D800
Canon 5D Mark III
  • $1850
  • 35mm
  • Fast startup
  • Higher effective ISO
  • $2079
  • 35mm
  • Bigger pixels
  • More cross-type AF points
Canon EOS M3
Canon 5D Mark III
  • $1049
  • APS-C
  • Focus peaking
  • Less expensive
  • $2079
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Nikon D800E

Nikon D800
Nikon D800E
  • $1850
  • 35mm
  • Has anti-aliasing filter
  • $2212
  • 35mm
  • Lacks anti-aliasing filter
Canon EOS M3
Nikon D800E
  • $1049
  • APS-C
  • Focus peaking
  • Touchscreen
  • $2212
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Samsung NX3000

Nikon D800
Samsung NX3000
  • $1850
  • 35mm
  • Lens selection
  • Larger sensor
  • $950
  • APS-C
  • Less expensive
  • In-camera panoramas
Canon EOS M3
Samsung NX3000
  • $1049
  • APS-C
  • Focus peaking
  • Touchscreen
  • $950
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Nikon D810

Nikon D800
Nikon D810
  • $1850
  • 35mm
  • Fast startup
  • Has anti-aliasing filter
  • $2278
  • 35mm
  • Longer stills battery life
  • Lacks anti-aliasing filter
Canon EOS M3
Nikon D810
  • $1049
  • APS-C
  • Less expensive
  • Focus peaking
  • $2278
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Fujifilm X-E3

Nikon D800
Fujifilm X-E3
  • $1850
  • 35mm
  • Lens selection
  • Larger sensor
  • $699
  • APS-C
  • Focus peaking
  • Shoot 4K video
Canon EOS M3
Fujifilm X-E3
  • $1049
  • APS-C
  • Tiltable Screen
  • NFC
  • $699
  • APS-C
  • Lens selection
  • Larger sensor
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