• 35mm 861.6mm2
  • 42.4 megapixels
  • ISO 100 - 25,600
  • 4/3 226.2mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Sony A7R II advantages over Olympus E-M10 III

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.51 vs 3.78 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • 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
  • More viewfinder magnification
    0.78x vs 0.62x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    42.4 vs 16.1 megapixels
    Higher resolution photos
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Higher extended ISO
    102400 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M10 III advantages over Sony A7R II

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $799 vs $1798*
    Save money for lenses or accessories
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Fast startup
    ~1.00 vs 1.5 sec
    Faster startup lets you catch the moment
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Less shutter lag
    0.14 vs 0.21 sec
    Focus and take a photo quickly (wide angle)
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    8.6 fps vs 5.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    Unlimited vs 23 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    8.6 fps vs 5.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    33 vs 23 shots
    Larger buffer for RAW shots (burst mode)
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

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
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • 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

User reviews

Buy From

Your purchases support this site

Buy the Sony A7R II
Body Only
All A7R II Deals

Your purchases support this site

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

Review Excerpt

  • Superb image quality; Very high resolution; Surprisingly good high ISO performance; Fast autofocus; Compact, comfortable body with lots of customization potential; Bright, roomy and clear viewfinder; Tilting LCD display; Five-axis stabilization; Intuitive Wi-Fi / NFC connectivity

  • Movie button is poorly located; No touch screen; Not as fast to start up or shoot photos as a similarly-priced SLR; Rather slow buffer clearing; No built-in flash; Single card slot; Not weather-sealed to the same degree as some rivals

  • Read our Sony A7R II Review

  • 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 Sony A7R

Sony A7R II
Sony A7R
  • $2348
  • 35mm
  • In-Camera Image Stabilization
  • Shoot 4K video
  • $1399
  • 35mm
  • Less expensive
  • Lighter weight

Compare Sony A7R II vs Sony A7R

Olympus E-M10 III
Sony A7R
  • $549
  • 4/3
  • Lens selection
  • Less expensive
  • $1399
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 III vs Sony A7R

Compared to Olympus E-M10 II

Sony A7R II
Olympus E-M10 II
  • $2348
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $349
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7R II vs 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

Compared to Panasonic GX85

Sony A7R II
Panasonic GX85
  • $2348
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7R II vs 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

Compared to Sony A9

Sony A7R II
Sony A9
  • $2348
  • 35mm
  • Less expensive
  • In-camera panoramas
  • $2995
  • 35mm
  • Bigger pixels
  • Touchscreen

Compare Sony A7R II vs Sony A9

Olympus E-M10 III
Sony A9
  • $549
  • 4/3
  • Less expensive
  • Lens selection
  • $2995
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 III vs Sony A9

Compared to Sony A7R III

Sony A7R II
Sony A7R III
  • $2348
  • 35mm
  • Less expensive
  • In-camera panoramas
  • $2498
  • 35mm
  • Touchscreen
  • High resolution composite

Compare Sony A7R II vs Sony A7R III

Olympus E-M10 III
Sony A7R III
  • $549
  • 4/3
  • Lens selection
  • Less expensive
  • $2498
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 III vs Sony A7R III

Compare Other Cameras?