• APS-C 369.0mm2
  • 14.8 megapixels
  • 75.00mm (35mm eq.)
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 100.00mm (35mm eq.)

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Differences

Sigma DP3 Merrill advantages over Canon G7X Mark III

  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.00 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Canon G7X Mark III advantages over Sigma DP3 Merrill

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Larger lens aperture
    f/1.8 vs f/2.8
    Take photos in low-light or isolate your subject
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • More telephoto lens reach
    100 mm vs 75 mm
    Capture objects farther away
  • Longer stills battery life
    More info 235 vs 97 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    41 mm vs 80 mm
    Thinner
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    5 years vs 11 years old
    Newer cameras often support more advanced features
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Lighter weight
    304g vs 400g
    Lighter weight
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    20.2 vs 14.8 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Wider angle lens
    24 mm vs 75 mm
    Capture more of the scene
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    20.0 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    125 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    30.0 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    76 vs 7 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/25600 vs 1/2000 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

  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

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Buy the Sigma DP3 Merrill

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Buy the Canon G7X Mark III

Review Excerpt

The Competition

Compared to Canon G7X Mark II

Sigma DP3 Merrill
Canon G7X Mark II
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $675
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization
Canon G7X Mark III
Canon G7X Mark II
  • $1074
  • 1 inch
  • Shoot 4K video
  • In-camera panoramas
  • $675
  • 1 inch
  • Less expensive
  • NFC

Compared to Sony RX100 V

Sigma DP3 Merrill
Sony RX100 V
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $998
  • 1 inch
  • Focus peaking
  • Eye-level viewfinder
Canon G7X Mark III
Sony RX100 V
  • $1074
  • 1 inch
  • Less expensive
  • Touchscreen
  • $998
  • 1 inch
  • Slower slow-motion
  • Eye-level viewfinder

Compared to Sony RX100 VA

Sigma DP3 Merrill
Sony RX100 VA
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $998
  • 1 inch
  • Focus peaking
  • Eye-level viewfinder
Canon G7X Mark III
Sony RX100 VA
  • $1074
  • 1 inch
  • Less expensive
  • Touchscreen
  • $998
  • 1 inch
  • Slower slow-motion
  • Eye-level viewfinder

Compared to Canon G5X Mark II

Sigma DP3 Merrill
Canon G5X Mark II
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $899
  • 1 inch
  • Focus peaking
  • Eye-level viewfinder
Canon G7X Mark III
Canon G5X Mark II
  • $1074
  • 1 inch
  • Less expensive
  • External Mic Jack
  • $899
  • 1 inch
  • Eye-level viewfinder
  • More telephoto lens reach

Compared to Sony ZV-1

Sigma DP3 Merrill
Sony ZV-1
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $800
  • 1 inch
  • Less expensive
  • Focus peaking
Canon G7X Mark III
Sony ZV-1
  • $1074
  • 1 inch
  • More telephoto lens reach
  • Internal flash
  • $800
  • 1 inch
  • Slower slow-motion
  • NFC
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