• 4/3 226.2mm2
  • 16.1 megapixels
  • ISO 200 - 25,600
  • 35mm 847.3mm2
  • 24.2 megapixels
  • ISO 100 - 51,200

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Differences

Olympus E-M10 III advantages over Sony A7C

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $799 vs $1798
    Save money for lenses or accessories
  • More telephoto lens reach
    84 mm vs 60 mm
    Capture objects farther away with the kit lens
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Sony A7C advantages over Olympus E-M10 III

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Bigger pixels
    ~ 5.93 vs 3.78 microns
    Better low-light and dynamic range (all else equal)
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Longer video battery life
    115 vs 80 minutes
    Capture more video
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    4 years vs 7 years old
    Newer cameras often support more advanced features
  • More pixels
    24.2 vs 16.1 megapixels
    Higher resolution photos
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Higher extended ISO
    204800 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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

User reviews

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Buy the Olympus E-M10 III
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  • Kit with 14-42mm EZ lens (Black)
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All E-M10 III Deals

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  • Body Only
  • Kit with 28-60mm Lens
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Review Excerpt

  • Superbly-built, comfortable and compact body; Pairs beautifully with pancake kit lens; Excellent image quality; Excellent performance in most respects; Great single-shot autofocus; Really nice viewfinder and touch-screen display; Friendlier user interface courts amateurs.

  • Some controls are a bit small and tightly-packed; Hand grips are still a bit modestly-sized for larger lenses; Continuous and video autofocus just isn't up to snuff; New user interface can feel limiting to advanced photographers; Underwhelming battery life.

  • Read our Olympus E-M10 III Review

The Competition

Compared to Olympus E-M5 II

Olympus E-M10 III
Olympus E-M5 II
  • $549
  • 4/3
  • Shoot 4K video
  • Internal flash
  • $899
  • 4/3
  • Tilt-swivel screen
  • High resolution composite

Compare Olympus E-M10 III vs Olympus E-M5 II

Sony A7C
Olympus E-M5 II
  • $1598
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $899
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7C vs Olympus E-M5 II

Compared to Olympus E-M10 II

Olympus E-M10 III
Olympus E-M10 II
  • $549
  • 4/3
  • Shoot 4K video
  • Bigger JPEG buffer
  • $349
  • 4/3
  • Less expensive

Compare Olympus E-M10 III vs Olympus E-M10 II

Sony A7C
Olympus E-M10 II
  • $1598
  • 35mm
  • Larger sensor
  • Tilt-swivel screen
  • $349
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7C vs Olympus E-M10 II

Compared to Panasonic GX85

Olympus E-M10 III
Panasonic GX85
  • $549
  • 4/3
  • More telephoto lens reach
  • Higher max flash sync
  • $598
  • 4/3
  • Less expensive
  • In-camera panoramas

Compare Olympus E-M10 III vs Panasonic GX85

Sony A7C
Panasonic GX85
  • $1598
  • 35mm
  • Tilt-swivel screen
  • Larger sensor
  • $598
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7C vs Panasonic GX85

Compared to Canon EOS RP

Olympus E-M10 III
Canon EOS RP
  • $549
  • 4/3
  • Focus peaking
  • Less expensive
  • $949
  • 35mm
  • Tilt-swivel screen
  • Larger sensor

Compare Olympus E-M10 III vs Canon EOS RP

Sony A7C
Canon EOS RP
  • $1598
  • 35mm
  • Less expensive
  • Focus peaking
  • $949
  • 35mm
  • More telephoto lens reach
  • Wider angle kit lens

Compare Sony A7C vs Canon EOS RP

Compared to Sigma fp

Olympus E-M10 III
Sigma fp
  • $549
  • 4/3
  • Less expensive
  • Eye-level viewfinder
  • $1623
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 III vs Sigma fp

Sony A7C
Sigma fp
  • $1598
  • 35mm
  • Tilt-swivel screen
  • Eye-level viewfinder
  • $1623
  • 35mm
  • Thinner
  • More dots on screen

Compare Sony A7C vs Sigma fp

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