• 35mm 861.6mm2
  • 36.3 megapixels
  • ISO 100 - 6400
  • 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

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Differences

Nikon D800 advantages over Panasonic G9

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.88 vs 3.34 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.30 vs 0.9 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 900 vs 400 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • More pixels
    36.3 vs 20.3 megapixels
    Higher resolution photos
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos

Panasonic G9 advantages over Nikon D800

  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Newer
    7 years vs 13 years old
    Newer cameras often support more advanced features
  • Lighter weight
    658g vs 1008g
    Lighter weight
  • Less shutter lag
    0.12 vs 0.21 sec
    Focus and take a photo quickly (wide angle)
  • More viewfinder magnification
    0.83x vs 0.70x
    Get a bigger view of the scene through the eye-level viewfinder
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    60.0 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    60.0 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    50 vs 18 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/32000 vs 1/8000 sec
    Shoot wide open in bright light

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
  • 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
  • Dual card slots
    Both provide
    Gives you more storage flexibility
  • Headphone jack
    Both provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance

User reviews

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Buy the Nikon D800

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Buy the Panasonic G9
Body Only
  • Body Only
  • Kit with 12-60mm f/2.8-4 lens
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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.

  • Read our Nikon D800 Review

  • Great build quality; Very good image quality; Effective IBIS; Excellent performance; Fast shooting speeds; 4K/60p video.

  • No phase-detection autofocus; 10-minute limit for 4k60p video clips; No V-Log or 10-bit video.

  • Read our Panasonic G9 Review

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

Compare Nikon D800 vs Canon 5D Mark III

Panasonic G9
Canon 5D Mark III
  • $1065
  • 4/3
  • Focus peaking
  • Less expensive
  • $2079
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic G9 vs Canon 5D Mark III

Compared to Nikon D800E

Nikon D800
Nikon D800E
  • $1850
  • 35mm
  • Has anti-aliasing filter
  • $2212
  • 35mm
  • Lacks anti-aliasing filter

Compare Nikon D800 vs Nikon D800E

Panasonic G9
Nikon D800E
  • $1065
  • 4/3
  • Tilt-swivel screen
  • Focus peaking
  • $2212
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic G9 vs Nikon D800E

Compared to Nikon D810

Nikon D800
Nikon D810
  • $1850
  • 35mm
  • Fast startup
  • Has anti-aliasing filter
  • $2291
  • 35mm
  • Longer stills battery life
  • Lacks anti-aliasing filter

Compare Nikon D800 vs Nikon D810

Panasonic G9
Nikon D810
  • $1065
  • 4/3
  • Focus peaking
  • Less expensive
  • $2291
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic G9 vs Nikon D810

Compared to Panasonic GH5

Nikon D800
Panasonic GH5
  • $1850
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $1348
  • 4/3
  • Focus peaking
  • Tilt-swivel screen

Compare Nikon D800 vs Panasonic GH5

Panasonic G9
Panasonic GH5
  • $1065
  • 4/3
  • High resolution composite
  • Top deck display
  • $1348
  • 4/3
  • Less expensive
  • Bigger JPEG buffer

Compare Panasonic G9 vs Panasonic GH5

Compared to Panasonic G95

Nikon D800
Panasonic G95
  • $1850
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $848
  • 4/3
  • Focus peaking
  • Tilt-swivel screen

Compare Nikon D800 vs Panasonic G95

Panasonic G9
Panasonic G95
  • $1065
  • 4/3
  • Slower slow-motion
  • High resolution composite
  • $848
  • 4/3
  • Less expensive
  • In-camera panoramas

Compare Panasonic G9 vs Panasonic G95

Compare Other Cameras?