• 1 inch 116.2mm2
  • 20.2 megapixels
  • 28.00mm - 100.00mm (35mm eq.)
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600

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Differences

Sony RX100 advantages over Olympus E-M1 Mark III

  • 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
    35 mm vs 68 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/250 sec
    Reduce the effect of ambient light in flash shots
  • Lighter weight
    240g vs 580g
    Lighter weight
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos

Olympus E-M1 Mark III advantages over Sony RX100

  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • 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
  • Bigger pixels
    ~ 3.36 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Shoot 4K video
    4K (DCI) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • 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
    5 years vs 12 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/32000 vs 1/2000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • 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

  • 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
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Olympus E-M1 Mark III

Review Excerpt

  • Excellent high-ISO performance for such a compact model; Smart controls; Small body; Bright lens; 10fps full-res burst mode; Very fast shutter response; Excellent LCD.

  • Lens flare at night; Poor rendering of yellows; Slow flash recycling; Soft corners wide open; Continuous AF mode slow to lock.

The Competition

Compared to Sony RX100 II

Sony RX100
Sony RX100 II
  • $1074
  • 1 inch
  • Faster RAW shooting
  • $598
  • 1 inch
  • Tiltable Screen
  • Built-in Wi-Fi
Olympus E-M1 Mark III
Sony RX100 II
  • $1699
  • 4/3
  • Larger sensor
  • Tilt-swivel screen
  • $598
  • 1 inch
  • Less expensive
  • In-camera panoramas

Compared to Sony RX100 III

Sony RX100
Sony RX100 III
  • $1074
  • 1 inch
  • More telephoto lens reach
  • Faster RAW shooting
  • $748
  • 1 inch
  • Eye-level viewfinder
  • Tiltable Screen
Olympus E-M1 Mark III
Sony RX100 III
  • $1699
  • 4/3
  • Larger sensor
  • Tilt-swivel screen
  • $748
  • 1 inch
  • Less expensive
  • In-camera panoramas

Compared to Canon G7X

Sony RX100
Canon G7X
  • $1074
  • 1 inch
  • In-camera panoramas
  • Longer stills battery life
  • $1239
  • 1 inch
  • Touchscreen
  • Tiltable Screen
Olympus E-M1 Mark III
Canon G7X
  • $1699
  • 4/3
  • Larger sensor
  • Tilt-swivel screen
  • $1239
  • 1 inch
  • NFC
  • Internal flash

Compared to Panasonic G95

Sony RX100
Panasonic G95
  • $1074
  • 1 inch
  • Thinner
  • Higher max flash sync
  • $848
  • 4/3
  • Tilt-swivel screen
  • Larger sensor
Olympus E-M1 Mark III
Panasonic G95
  • $1699
  • 4/3
  • High resolution composite
  • On-sensor phase detect
  • $848
  • 4/3
  • Less expensive
  • In-camera panoramas

Compared to OM System OM-1

Sony RX100
OM System OM-1
  • $1074
  • 1 inch
  • Less expensive
  • In-camera panoramas
  • $2200
  • 4/3
  • Tilt-swivel screen
  • Larger sensor
Olympus E-M1 Mark III
OM System OM-1
  • $1699
  • 4/3
  • $2200
  • 4/3
  • Newer
  • Higher-res screen
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