• APS-C 369.7mm2
  • 12.3 megapixels
  •  
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600

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Differences

Ricoh GXR advantages over Olympus E-M1 Mark III

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.53 vs 3.36 microns
    Better low-light and dynamic range (all else equal)
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Lighter weight
    423g vs 580g
    Lighter weight
  • Longer exposure
    180 vs 60 sec
    Long exposures for night shots

Olympus E-M1 Mark III advantages over Ricoh GXR

  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • 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
  • 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
  • Shoot 4K video
    4K (DCI) vs 720p
    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 15 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
    20.4 vs 12.3 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster shutter
    1/32000 vs 1/3200 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Olympus E-M1 Mark III

Review Excerpt

The Competition

Compared to Pentax K2000

Ricoh GXR
Pentax K2000
  • $1380
  • APS-C
  • HDMI out
  • Shoots 24p video
  • $556
  • APS-C
  • Less expensive
  • Lens selection
Olympus E-M1 Mark III
Pentax K2000
  • $1649
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
  • $556
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Fujifilm X100

Ricoh GXR
Fujifilm X100
  • $1380
  • APS-C
  • More dots on screen
  • Longer exposure
  • $1200
  • APS-C
  • Less expensive
  • Eye-level viewfinder
Olympus E-M1 Mark III
Fujifilm X100
  • $1649
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
  • $1200
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sigma DP1 Merrill

Ricoh GXR
Sigma DP1 Merrill
  • $1380
  • APS-C
  • Longer stills battery life
  • Internal flash
  • $849
  • APS-C
  • Less expensive
  • More pixels
Olympus E-M1 Mark III
Sigma DP1 Merrill
  • $1649
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
  • $849
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Panasonic G95

Ricoh GXR
Panasonic G95
  • $1380
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $848
  • 4/3
  • Lens selection
  • Focus peaking
Olympus E-M1 Mark III
Panasonic G95
  • $1649
  • 4/3
  • High resolution composite
  • On-sensor phase detect
  • $848
  • 4/3
  • Less expensive
  • In-camera panoramas

Compared to OM System OM-1

Ricoh GXR
OM System OM-1
  • $1380
  • APS-C
  • Less expensive
  • Larger sensor
  • $2200
  • 4/3
  • Tilt-swivel screen
  • Lens selection
Olympus E-M1 Mark III
OM System OM-1
  • $1649
  • 4/3
  • $2200
  • 4/3
  • Newer
  • Higher-res screen
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