• 35mm 860.4mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

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Differences

Nikon D4 advantages over Olympus E-PL9

  • Larger sensor
    35mm vs 4/3
    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
    ~ 7.31 vs 3.75 microns
    Better low-light and dynamic range (all else equal)
  • Longer stills battery life
    More info 2600 vs 350 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Faster JPEG shooting
    11.1 fps vs 8.6 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    11.1 fps vs 8.6 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    Unlimited vs 14 shots
    Larger buffer for RAW shots (burst mode)
  • Higher extended ISO
    204800 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-PL9 advantages over Nikon D4

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Less expensive
    $699 vs $5999*
    Save money for lenses or accessories
  • 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
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    39 mm vs 90 mm
    Thinner
  • Newer
    5 months vs 7 years old
    Newer cameras often support more advanced features
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • HDMI out
    Both provide
    Use an external screen 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
  • 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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Review Excerpt

The Competition

Compared to Canon 1DX

Nikon D4
Canon 1DX
  • $6248
  • 35mm
  • Fast startup
  • More dynamic range
  • $5499
  • 35mm
  • More cross-type AF points
  • Less shutter lag
Olympus E-PL9
Canon 1DX
  • $599
  • 4/3
  • Less expensive
  • Focus peaking
  • $5499
  • 35mm
  • Larger sensor
  • Eye-level viewfinder

Compared to Canon EOS-1D C

Nikon D4
Canon EOS-1D C
  • $6248
  • 35mm
  • $6989
  • 35mm
  • Shoot 4K video
  • More cross-type AF points
Olympus E-PL9
Canon EOS-1D C
  • $599
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $6989
  • 35mm
  • Larger sensor
  • Eye-level viewfinder

Compared to Nikon D4S

Nikon D4
Nikon D4S
  • $6248
  • 35mm
  • Bigger JPEG buffer
  • Bigger RAW buffer
  • $6183
  • 35mm
  • Fast startup
  • Newer
Olympus E-PL9
Nikon D4S
  • $599
  • 4/3
  • Less expensive
  • Focus peaking
  • $6183
  • 35mm
  • Larger sensor
  • Eye-level viewfinder

Compared to Panasonic GX85

Nikon D4
Panasonic GX85
  • $6248
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Focus peaking
  • Less expensive
Olympus E-PL9
Panasonic GX85
  • $599
  • 4/3
  • Built-in Bluetooth
  • Longer stills battery life
  • $598
  • 4/3
  • Less expensive
  • Eye-level viewfinder

Compared to Olympus E-PL8

Nikon D4
Olympus E-PL8
  • $6248
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
  • $499
  • 4/3
  • Less expensive
  • Focus peaking
Olympus E-PL9
Olympus E-PL8
  • $599
  • 4/3
  • Shoot 4K video
  • In-camera panoramas
  • $499
  • 4/3
  • Less expensive
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