• 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600
  • 1/2.3 inch 28.1mm2
  • 20.2 megapixels
  • 24.00mm - 840.00mm (35mm eq.)

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Differences

Olympus E-M5 advantages over Nikon A900

  • Larger sensor
    4/3 vs 1/2.3 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
  • Bigger pixels
    ~ 3.75 vs 1.19 microns
    Better low-light and dynamic range (all else equal)
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Longer stills battery life
    More info 360 vs 270 shots
    Capture more photos
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Longer exposure
    60 vs 8 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    8.9 fps vs 7.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    17 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    25600 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Nikon A900 advantages over Olympus E-M5

  • Less expensive
    $397* vs $900
    Save money for lenses or accessories
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Newer
    9 years vs 13 years old
    Newer cameras often support more advanced features
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    20.2 vs 16.1 megapixels
    Higher resolution photos
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

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
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the Olympus E-M5

Your purchases support this site

Buy the Nikon A900

Review Excerpt

  • Attractive body design; Well-built, weather-sealed body; Excellent image quality; Excellent image stabilization; Very fast autofocus.

  • Exposure compensation dial changes easily; Small buttons; No in-camera chromatic aberration correction; Bundled flash is weak; Video compression artifacts with rapidly-moving subjects.

The Competition

Compared to Olympus E-M1

Olympus E-M5
Olympus E-M1
  • $900
  • 4/3
  • Less expensive
  • Thinner
  • $1099
  • 4/3
  • Focus peaking
  • Fast startup
Nikon A900
Olympus E-M1
  • $397
  • 1/2.3 inch
  • Less expensive
  • Shoot 4K video
  • $1099
  • 4/3
  • Focus peaking
  • Larger sensor

Compared to Panasonic G3

Olympus E-M5
Panasonic G3
  • $900
  • 4/3
  • In-Camera Image Stabilization
  • Higher effective ISO
  • $700
  • 4/3
  • Internal flash
  • More viewfinder magnification
Nikon A900
Panasonic G3
  • $397
  • 1/2.3 inch
  • In-Camera Image Stabilization
  • Shoot 4K video
  • $700
  • 4/3
  • Larger sensor
  • Eye-level viewfinder

Compared to Olympus E-P5

Olympus E-M5
Olympus E-P5
  • $900
  • 4/3
  • Eye-level viewfinder
  • More telephoto lens reach
  • $1249
  • 4/3
  • Focus peaking
  • Built-in Wi-Fi
Nikon A900
Olympus E-P5
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • In-camera panoramas
  • $1249
  • 4/3
  • Focus peaking
  • Larger sensor

Compared to Panasonic GX7

Olympus E-M5
Panasonic GX7
  • $900
  • 4/3
  • Higher effective ISO
  • More telephoto lens reach
  • $648
  • 4/3
  • Focus peaking
  • In-camera panoramas
Nikon A900
Panasonic GX7
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • Built-in Bluetooth
  • $648
  • 4/3
  • Focus peaking
  • Larger sensor

Compared to Panasonic ZS60

Olympus E-M5
Panasonic ZS60
  • $900
  • 4/3
  • Larger sensor
  • Bigger pixels
  • $448
  • 1/2.3 inch
  • Less expensive
  • Focus peaking
Nikon A900
Panasonic ZS60
  • $397
  • 1/2.3 inch
  • Tiltable Screen
  • NFC
  • $448
  • 1/2.3 inch
  • Focus peaking
  • Slower slow-motion
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