• APS-C 370.5mm2
  • 24.2 megapixels
  • ISO 100 - 50,000
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 6400

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Differences

Leica CL advantages over Olympus E-M5 III

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.92 vs 3.36 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More viewfinder magnification
    0.74x vs 0.68x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    24.2 vs 20.4 megapixels
    Higher resolution photos
  • Bigger JPEG buffer
    140 vs 26 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    50000 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M5 III advantages over Leica CL

  • Less expensive
    $1099 vs $3195*
    Save money for lenses or accessories
  • 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
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 310 vs 220 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    4 years vs 6 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
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    30.0 fps vs 10.0 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    30.0 fps vs 10.0 fps
    Faster RAW shooting in burst mode
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

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
  • 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
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities

Common Weaknesses

  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the Leica CL

Your purchases support this site

Buy the Olympus E-M5 III

Review Excerpt

  • Improved image quality; Very good dynamic range & high ISO performance for a modern MFT sensor; Very fast AF; Excellent image stabilization; 4K video recording; Weather-sealed build quality.

  • Below average battery life; Small size can be awkward with long, heavy lenses; One SD card slot.

The Competition

Compared to Fujifilm X-Pro2

Leica CL
Fujifilm X-Pro2
  • $3195
  • APS-C
  • Touchscreen
  • In-camera panoramas
  • $1300
  • APS-C
  • Less expensive
  • On-sensor phase detect
Olympus E-M5 III
Fujifilm X-Pro2
  • $924
  • 4/3
  • Lens selection
  • Less expensive
  • $1300
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sony A6500

Leica CL
Sony A6500
  • $3195
  • APS-C
  • Top deck display
  • Lacks anti-aliasing filter
  • $1198
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
Olympus E-M5 III
Sony A6500
  • $924
  • 4/3
  • Lens selection
  • Less expensive
  • $1198
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Fujifilm X-Pro3

Leica CL
Fujifilm X-Pro3
  • $3195
  • APS-C
  • In-camera panoramas
  • More viewfinder magnification
  • $1799
  • APS-C
  • Less expensive
  • Tiltable Screen
Olympus E-M5 III
Fujifilm X-Pro3
  • $924
  • 4/3
  • Lens selection
  • Less expensive
  • $1799
  • APS-C
  • Larger sensor
  • Longer stills battery life

Compared to Panasonic G100

Leica CL
Panasonic G100
  • $3195
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $623
  • 4/3
  • Less expensive
  • Tilt-swivel screen
Olympus E-M5 III
Panasonic G100
  • $924
  • 4/3
  • In-Camera Image Stabilization
  • High resolution composite
  • $623
  • 4/3
  • Less expensive
  • In-camera panoramas

Compared to Olympus E-M10 IV

Leica CL
Olympus E-M10 IV
  • $3195
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $666
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization
Olympus E-M5 III
Olympus E-M10 IV
  • $924
  • 4/3
  • Tilt-swivel screen
  • High resolution composite
  • $666
  • 4/3
  • Less expensive
  • Longer video battery life
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