• APS-C 364.3mm2
  • 19.6 megapixels
  • ISO 100 - 6400
  • 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Sigma sd Quattro advantages over Panasonic G100

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.33 vs 3.34 microns
    Better low-light and dynamic range (all else equal)
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Panasonic G100 advantages over Sigma sd Quattro

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Less expensive
    $598 vs $899
    Save money for lenses or accessories
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Shoot 4K video
    4K (UHD) vs No
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    54 mm vs 90 mm
    Thinner
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    4 years vs 8 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • 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
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

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
  • 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

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
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • 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 Panasonic G100

Review Excerpt

The Competition

Compared to Sony A3000

Sigma sd Quattro
Sony A3000
  • $699
  • APS-C
  • On-sensor phase detect
  • HDMI out
  • $500
  • APS-C
  • Lens selection
  • In-camera panoramas
Panasonic G100
Sony A3000
  • $599
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $500
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sigma sd Quattro H

Sigma sd Quattro
Sigma sd Quattro H
  • $699
  • APS-C
  • Bigger RAW buffer
  • $1199
  • APS-H
  • Larger sensor
  • More pixels
Panasonic G100
Sigma sd Quattro H
  • $599
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $1199
  • APS-H
  • Larger sensor
  • Bigger pixels

Compared to Fujifilm X-H1

Sigma sd Quattro
Fujifilm X-H1
  • $699
  • APS-C
  • More dots on screen
  • $1199
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
Panasonic G100
Fujifilm X-H1
  • $599
  • 4/3
  • Less expensive
  • Tilt-swivel screen
  • $1199
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compared to Olympus E-M5 III

Sigma sd Quattro
Olympus E-M5 III
  • $699
  • APS-C
  • Less expensive
  • Larger sensor
  • $924
  • 4/3
  • Lens selection
  • Tilt-swivel screen
Panasonic G100
Olympus E-M5 III
  • $599
  • 4/3
  • Less expensive
  • In-camera panoramas
  • $924
  • 4/3
  • In-Camera Image Stabilization
  • High resolution composite

Compared to Olympus E-M10 IV

Sigma sd Quattro
Olympus E-M10 IV
  • $699
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $666
  • 4/3
  • Less expensive
  • Lens selection
Panasonic G100
Olympus E-M10 IV
  • $599
  • 4/3
  • Less expensive
  • Tilt-swivel screen
  • $666
  • 4/3
  • In-Camera Image Stabilization
  • More telephoto lens reach
Compare Other Cameras?