• 4/3 224.9mm2
  • 16.0 megapixels
  • ISO 160 - 12,800
  • APS-C 364.3mm2
  • 19.6 megapixels
  • ISO 100 - 6400

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Differences

Panasonic GX1 advantages over Sigma sd Quattro

  • Less expensive
    $388 vs $899
    Save money for lenses or accessories
  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    39 mm vs 90 mm
    Thinner
  • 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
  • Higher extended ISO
    12800 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Sigma sd Quattro advantages over Panasonic GX1

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 4.33 vs 3.77 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
  • Newer
    2 years vs 7 years old
    Newer cameras often support more advanced features
  • More dots on screen
    1620k vs 460k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    19.6 vs 16.0 megapixels
    Higher resolution photos
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • 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
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Your purchases support this site

Buy the Panasonic GX1

Review Excerpt

  • Appealing design; Good grip; Very good image quality; Fast autofocus; Built-in Level Gauge.

  • Small rear buttons; Below-average battery life; Weak flash; Orange and yellow can have greenish cast in JPEGs; Shutter-induced motion blur with 14-42mm X Vario kit lens.

The Competition

Compared to Olympus E-PL5

Panasonic GX1
Olympus E-PL5
  • $388
  • 4/3
  • Focus peaking
  • Internal flash
  • $329
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization
Sigma sd Quattro
Olympus E-PL5
  • $699
  • APS-C
  • Focus peaking
  • Larger sensor
  • $329
  • 4/3
  • Lens selection
  • Less expensive

Compared to Olympus E-PM2

Panasonic GX1
Olympus E-PM2
  • $388
  • 4/3
  • Focus peaking
  • Internal flash
  • $448
  • 4/3
  • In-Camera Image Stabilization
  • Touchscreen
Sigma sd Quattro
Olympus E-PM2
  • $699
  • APS-C
  • Focus peaking
  • Larger sensor
  • $448
  • 4/3
  • Lens selection
  • In-Camera Image Stabilization

Compared to Panasonic GF6

Panasonic GX1
Panasonic GF6
  • $388
  • 4/3
  • Focus peaking
  • Higher effective ISO
  • $400
  • 4/3
  • Touchscreen
  • In-camera panoramas
Sigma sd Quattro
Panasonic GF6
  • $699
  • APS-C
  • Focus peaking
  • Larger sensor
  • $400
  • 4/3
  • Lens selection
  • Less expensive

Compared to Sigma sd Quattro H

Panasonic GX1
Sigma sd Quattro H
  • $388
  • 4/3
  • Less expensive
  • Lens selection
  • $1099
  • APS-H
  • Larger sensor
  • Eye-level viewfinder
Sigma sd Quattro
Sigma sd Quattro H
  • $699
  • APS-C
  • Less expensive
  • Bigger RAW buffer
  • $1099
  • APS-H
  • Larger sensor
  • More viewfinder magnification

Compared to Fujifilm X-H1

Panasonic GX1
Fujifilm X-H1
  • $388
  • 4/3
  • Less expensive
  • Lens selection
  • $1599
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
Sigma sd Quattro
Fujifilm X-H1
  • $699
  • APS-C
  • Less expensive
  • More dots on screen
  • $1599
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
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