• 35mm 855.6mm2
  • 18.0 megapixels
  • ISO 160 - 2500
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600

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Differences

Leica M9 advantages over Olympus E-M1 Mark III

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 6.87 vs 3.36 microns
    Better low-light and dynamic range (all else equal)
  • Thinner
    37 mm vs 68 mm
    Thinner

Olympus E-M1 Mark III advantages over Leica M9

  • 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
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (DCI) vs No
    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
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More dots on screen
    1037k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • 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
  • Longer exposure
    60 vs 32 sec
    Long exposures for night shots
  • Faster shutter
    1/32000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 2500 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

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
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Your purchases support this site

Buy the Olympus E-M1 Mark III

Review Excerpt

  • Excellent image quality, with unique film-like "Leica look"; No-nonsense controls; Solid build; Good print quality.

  • Difficult to focus in low light; High default contrast and saturation; Manual focus only; Lack of low-pass filter can leave moire and other artifacts.

The Competition

Compared to Leica M Monochrom

Leica M9
Leica M Monochrom
  • $8000
  • 35mm
  • $7950
  • 35mm
  • Faster JPEG shooting
  • Higher extended ISO
Olympus E-M1 Mark III
Leica M Monochrom
  • $1699
  • 4/3
  • Lens selection
  • Focus peaking
  • $7950
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Leica M (Typ 240)

Leica M9
Leica M (Typ 240)
  • $8000
  • 35mm
  • $6995
  • 35mm
  • Focus peaking
  • Higher effective ISO
Olympus E-M1 Mark III
Leica M (Typ 240)
  • $1699
  • 4/3
  • Lens selection
  • Less expensive
  • $6995
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Leica M-E (Typ 220)

Leica M9
Leica M-E (Typ 220)
  • $8000
  • 35mm
  • Higher effective ISO
  • $7999
  • 35mm
  • Focus peaking
  • Faster JPEG shooting
Olympus E-M1 Mark III
Leica M-E (Typ 220)
  • $1699
  • 4/3
  • Lens selection
  • Less expensive
  • $7999
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Panasonic G95

Leica M9
Panasonic G95
  • $8000
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $848
  • 4/3
  • Tilt-swivel screen
  • Lens selection
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

Leica M9
OM System OM-1
  • $8000
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $2200
  • 4/3
  • Lens selection
  • Focus peaking
Olympus E-M1 Mark III
OM System OM-1
  • $1699
  • 4/3
  • $2200
  • 4/3
  • Newer
  • Higher-res screen
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