• 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600
  • 1 inch 115.3mm2
  • 14.2 megapixels
  • ISO 200 - 12,800

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Differences

Olympus E-M1 advantages over Nikon S2

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    4/3 vs 1 inch
    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
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 3.75 vs 2.85 microns
    Better low-light and dynamic range (all else equal)
  • 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
  • Longer stills battery life
    More info 350 vs 270 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Higher max flash sync
    1/320 vs 1/60 sec
    Reduce the effect of ambient light in flash shots
  • More dots on screen
    1037k vs 461k dots
    Can mean greater resolution or a brighter screen
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Nikon S2 advantages over Olympus E-M1

  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    29 mm vs 63 mm
    Thinner
  • Lighter weight
    190g vs 497g
    Lighter weight
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Faster JPEG shooting
    60.0 fps vs 9.9 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Similarities

Common Strengths

  • On-sensor phase detect
    Both provide
    Usually improves live view and video AF performance
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • 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 Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

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Your purchases support this site

Buy the Nikon S2

Review Excerpt

  • Exceptional rugged, weather-proof, professional build; Lightning fast contrast-detect AF, and phase-detect AF that makes Four Thirds lenses far more responsive; Tons of useful physical controls with immense customizability; Arguably the best image quality of any Micro Four Thirds camera we've tested to date; Large, sharp, high-resolution electronic viewfinder; Advanced Wi-Fi capabilities, including remote control shooting in PASM exposure modes.

  • Bigger and heavier than many other compact system cameras; Most expensive Micro Four Thirds camera on the market to date; Menu system and customization options have a steep learning curve; No optical low-pass filter means greater risk of moire; No built-in flash.

The Competition

Compared to Olympus E-M5

Olympus E-M1
Olympus E-M5
  • $1099
  • 4/3
  • Focus peaking
  • Fast startup
  • $799
  • 4/3
  • Less expensive
  • Thinner
Nikon S2
Olympus E-M5
  • $399
  • 1 inch
  • In-camera panoramas
  • On-sensor phase detect
  • $799
  • 4/3
  • Lens selection
  • Larger sensor

Compared to Panasonic GH3

Olympus E-M1
Panasonic GH3
  • $1099
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $823
  • 4/3
  • Less expensive
  • Tilt-swivel screen
Nikon S2
Panasonic GH3
  • $399
  • 1 inch
  • In-camera panoramas
  • On-sensor phase detect
  • $823
  • 4/3
  • Lens selection
  • Larger sensor

Compared to Pentax Q7

Olympus E-M1
Pentax Q7
  • $1099
  • 4/3
  • Lens selection
  • Larger sensor
  • $195
  • 1/1.7 inch
  • Less expensive
  • Internal flash
Nikon S2
Pentax Q7
  • $399
  • 1 inch
  • Larger sensor
  • Bigger pixels
  • $195
  • 1/1.7 inch
  • Focus peaking
  • In-Camera Image Stabilization

Compared to Panasonic GH4

Olympus E-M1
Panasonic GH4
  • $1099
  • 4/3
  • In-Camera Image Stabilization
  • On-sensor phase detect
  • $798
  • 4/3
  • Less expensive
  • Tilt-swivel screen
Nikon S2
Panasonic GH4
  • $399
  • 1 inch
  • Slower slow-motion
  • In-camera panoramas
  • $798
  • 4/3
  • Lens selection
  • Focus peaking

Compared to Pentax Q-S1

Olympus E-M1
Pentax Q-S1
  • $1099
  • 4/3
  • Lens selection
  • Larger sensor
  • $350
  • 1/1.7 inch
  • Internal flash
  • Thinner
Nikon S2
Pentax Q-S1
  • $399
  • 1 inch
  • Larger sensor
  • Bigger pixels
  • $350
  • 1/1.7 inch
  • Focus peaking
  • In-Camera Image Stabilization
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