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

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Differences

Sigma sd Quattro advantages over Panasonic G9

  • Less expensive
    $799 vs $1698*
    Save money for lenses or accessories
  • 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
  • More dots on screen
    1620k vs 1040k dots
    Can mean greater resolution or a brighter screen
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Panasonic G9 advantages over Sigma sd Quattro

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • 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 (UHD) 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
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • 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
  • More viewfinder magnification
    0.83x vs 0.73x
    Get a bigger view of the scene through the eye-level viewfinder
  • 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 30 sec
    Long exposures for night shots
  • Faster RAW shooting
    60.0 fps vs 3.6 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    50 vs 14 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/32000 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 an external screen 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 panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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

User reviews

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Your purchases support this site

Buy the Sigma sd Quattro

Review Excerpt

The Competition

Compared to Sony A3000

Sigma sd Quattro
Sony A3000
  • $599
  • APS-C
  • On-sensor phase detect
  • Newer
  • $373
  • APS-C
  • Less expensive
  • Lens selection
Panasonic G9
Sony A3000
  • $1698
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $373
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Sigma sd Quattro H

Sigma sd Quattro
Sigma sd Quattro H
  • $599
  • APS-C
  • Less expensive
  • Bigger RAW buffer
  • $999
  • APS-H
  • Larger sensor
  • More viewfinder magnification
Panasonic G9
Sigma sd Quattro H
  • $1698
  • 4/3
  • Lens selection
  • Tilt-swivel screen
  • $999
  • APS-H
  • Less expensive
  • Larger sensor

Compared to Canon EOS M5

Sigma sd Quattro
Canon EOS M5
  • $599
  • APS-C
  • Less expensive
  • Bigger pixels
  • $979
  • APS-C
  • Touchscreen
  • Tiltable Screen
Panasonic G9
Canon EOS M5
  • $1698
  • 4/3
  • Lens selection
  • Tilt-swivel screen
  • $979
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Olympus E-M1 II

Sigma sd Quattro
Olympus E-M1 II
  • $599
  • APS-C
  • Less expensive
  • Larger sensor
  • $1799
  • 4/3
  • Lens selection
  • Tilt-swivel screen
Panasonic G9
Olympus E-M1 II
  • $1698
  • 4/3
  • Built-in Bluetooth
  • Top deck display
  • $1799
  • 4/3
  • Longer video battery life
  • On-sensor phase detect

Compared to Panasonic GH5

Sigma sd Quattro
Panasonic GH5
  • $599
  • APS-C
  • Less expensive
  • Larger sensor
  • $1998
  • 4/3
  • Lens selection
  • Tilt-swivel screen
Panasonic G9
Panasonic GH5
  • $1698
  • 4/3
  • Less expensive
  • High resolution composite
  • $1998
  • 4/3
  • Bigger JPEG buffer
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