• 35mm 864.0mm2
  • 20.1 megapixels
  • ISO 100 - 102,400
  • 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Canon 1DX Mark III advantages over Panasonic G100

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 6.58 vs 3.34 microns
    Better low-light and dynamic range (all else equal)
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Higher extended ISO
    819200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Panasonic G100 advantages over Canon 1DX Mark III

  • Less expensive
    $598 vs $6499*
    Save money for lenses or accessories
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
    54 mm vs 82 mm
    Thinner
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • 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
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • 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

  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones

User reviews

Buy From

Your purchases support this site

Buy the Canon 1DX Mark III
Body Only
All 1DX Mark III Deals

Your purchases support this site

Buy the Panasonic G100
Kit with 12-32mm Lens
  • Kit with 12-32mm Lens
  • Kit with Lens + Tripod Grip
All G100 Deals

Review Excerpt

The Competition

Compared to Nikon D5

Canon 1DX Mark III
Nikon D5
  • $6499
  • 35mm
  • Built-in Wi-Fi
  • Built-in Bluetooth
  • $5098
  • 35mm
  • Less expensive
  • Longer stills battery life

Compare Canon 1DX Mark III vs Nikon D5

Panasonic G100
Nikon D5
  • $623
  • 4/3
  • Focus peaking
  • Less expensive
  • $5098
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic G100 vs Nikon D5

Compared to Canon 1DX Mark II

Canon 1DX Mark III
Canon 1DX Mark II
  • $6499
  • 35mm
  • Built-in Wi-Fi
  • Built-in Bluetooth
  • $2999
  • 35mm
  • Less expensive

Compare Canon 1DX Mark III vs Canon 1DX Mark II

Panasonic G100
Canon 1DX Mark II
  • $623
  • 4/3
  • Less expensive
  • Tilt-swivel screen
  • $2999
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic G100 vs Canon 1DX Mark II

Compared to Nikon D6

Canon 1DX Mark III
Nikon D6
  • $6499
  • 35mm
  • Built-in Wi-Fi
  • On-sensor phase detect
  • $6500
  • 35mm
  • Longer exposure

Compare Canon 1DX Mark III vs Nikon D6

Panasonic G100
Nikon D6
  • $623
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
  • $6500
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic G100 vs Nikon D6

Compared to Olympus E-M5 III

Canon 1DX Mark III
Olympus E-M5 III
  • $6499
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $924
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Canon 1DX Mark III vs Olympus E-M5 III

Panasonic G100
Olympus E-M5 III
  • $623
  • 4/3
  • Less expensive
  • In-camera panoramas
  • $924
  • 4/3
  • In-Camera Image Stabilization
  • High resolution composite

Compare Panasonic G100 vs Olympus E-M5 III

Compared to Olympus E-M10 IV

Canon 1DX Mark III
Olympus E-M10 IV
  • $6499
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $666
  • 4/3
  • Less expensive
  • Focus peaking

Compare Canon 1DX Mark III vs Olympus E-M10 IV

Panasonic G100
Olympus E-M10 IV
  • $623
  • 4/3
  • Less expensive
  • Tilt-swivel screen
  • $666
  • 4/3
  • In-Camera Image Stabilization
  • More telephoto lens reach

Compare Panasonic G100 vs Olympus E-M10 IV

Compare Other Cameras?