• 35mm 860.4mm2
  • 12.1 megapixels
  • ISO 200 - 12,800
  • APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 6400

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Differences

Nikon D3S advantages over Canon 7D

  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 8.46 vs 4.30 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.30 vs 0.4 sec
    Faster startup lets you catch the moment
  • Higher effective ISO
    3,253 vs 854 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 4200 vs 800 shots
    Capture more photos
  • More viewfinder magnification
    0.70x vs 0.63x
    Get a bigger view of the scene through the eye-level viewfinder
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Faster JPEG shooting
    9.0 fps vs 8.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    90 vs 22 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    9.1 fps vs 8.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    41 vs 16 shots
    Larger buffer for RAW shots (burst mode)
  • Higher extended ISO
    102400 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Canon 7D advantages over Nikon D3S

  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    18.0 vs 12.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • Pentaprism viewfinder
    Both provide
    Much better viewfinder picture fidelity
  • 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

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • 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
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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

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.

The Competition

Compared to Canon 7D Mark II

Nikon D3S
Canon 7D Mark II
  • $5200
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $1612
  • APS-C
  • Built-in GPS
  • On-sensor phase detect
Canon 7D
Canon 7D Mark II
  • $1499
  • APS-C
  • Less expensive
  • Less shutter lag
  • $1612
  • APS-C
  • Higher effective ISO
  • Built-in GPS

Compared to Nikon D3X

Nikon D3S
Nikon D3X
  • $5200
  • 35mm
  • Less expensive
  • Bigger pixels
  • $2500
  • 35mm
  • More dynamic range
  • External Mic Jack
Canon 7D
Nikon D3X
  • $1499
  • APS-C
  • Internal flash
  • Shoots 24p video
  • $2500
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Canon 60D

Nikon D3S
Canon 60D
  • $5200
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $889
  • APS-C
  • Tilt-swivel screen
  • Internal flash
Canon 7D
Canon 60D
  • $1499
  • APS-C
  • More cross-type AF points
  • Less shutter lag
  • $889
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Sony A77

Nikon D3S
Sony A77
  • $5200
  • 35mm
  • Lens selection
  • Larger sensor
  • $1899
  • APS-C
  • Focus peaking
  • Less expensive
Canon 7D
Sony A77
  • $1499
  • APS-C
  • Lens selection
  • Fast startup
  • $1899
  • APS-C
  • Tilt-swivel screen
  • Focus peaking

Compared to Canon 1DX

Nikon D3S
Canon 1DX
  • $5200
  • 35mm
  • Less expensive
  • Bigger pixels
  • $5299
  • 35mm
  • External Mic Jack
  • Shoots 1080p video
Canon 7D
Canon 1DX
  • $1499
  • APS-C
  • Internal flash
  • $5299
  • 35mm
  • Larger sensor
  • Bigger pixels
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