• APS-C 369.0mm2
  • 14.8 megapixels
  • 75.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 20.0 megapixels
  • 24.00mm - 1008.00mm (35mm eq.)

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Differences

Sigma DP3 Merrill advantages over Canon SX420 IS

  • Larger sensor
    APS-C vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.00 vs 1.20 microns
    Better low-light and dynamic range (all else equal)
  • Larger lens aperture
    f/2.8 vs f/3.5
    Take photos in low-light or isolate your subject
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Higher-res screen
    307k vs 77k pixels
    More detail on the screen lets you judge focus and composition
  • 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
  • Longer exposure
    30 vs 15 sec
    Long exposures for night shots
  • Faster JPEG shooting
    4.0 fps vs 0.5 fps
    Faster JPEG shooting (burst mode)
  • Higher extended ISO
    6400 vs 1600 ISO
    Higher extended ISO can give more low-light flexibility

Canon SX420 IS advantages over Sigma DP3 Merrill

  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • More telephoto lens reach
    1,008 mm vs 75 mm
    Capture objects farther away
  • Longer stills battery life
    More info 195 vs 97 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • More pixels
    20.0 vs 14.8 megapixels
    Higher resolution photos
  • Wider angle lens
    24 mm vs 75 mm
    Capture more of the scene
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • 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
  • 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
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • HDMI out
    Neither provide
    Use HDMI output to monitor or review video
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Neither provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Your purchases support this site

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Sigma DP3

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Canon SX420 IS (Black)
  • Canon SX420 IS (Black)
  • Canon SX420 IS (Red)
All SX420 IS Deals

Review Excerpt

The Competition

Compared to Canon SX500

Sigma DP3 Merrill
Canon SX500
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $498
  • 1/2.3 inch
  • In-Camera Image Stabilization
  • More telephoto lens reach

Compare Sigma DP3 Merrill vs Canon SX500

Canon SX420 IS
Canon SX500
  • $279
  • 1/2.3 inch
  • Less expensive
  • More telephoto lens reach
  • $498
  • 1/2.3 inch
  • Manual focus
  • HDMI out

Compare Canon SX420 IS vs Canon SX500

Compared to Canon SX510 HS

Sigma DP3 Merrill
Canon SX510 HS
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $199
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization

Compare Sigma DP3 Merrill vs Canon SX510 HS

Canon SX420 IS
Canon SX510 HS
  • $279
  • 1/2.3 inch
  • More telephoto lens reach
  • More pixels
  • $199
  • 1/2.3 inch
  • Bigger pixels
  • Built-in Wi-Fi

Compare Canon SX420 IS vs Canon SX510 HS

Compared to Canon SX400 IS

Sigma DP3 Merrill
Canon SX400 IS
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $149
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization

Compare Sigma DP3 Merrill vs Canon SX400 IS

Canon SX420 IS
Canon SX400 IS
  • $279
  • 1/2.3 inch
  • More telephoto lens reach
  • More pixels
  • $149
  • 1/2.3 inch
  • Manual focus

Compare Canon SX420 IS vs Canon SX400 IS

Compared to Canon SX410 IS

Sigma DP3 Merrill
Canon SX410 IS
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $199
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization

Compare Sigma DP3 Merrill vs Canon SX410 IS

Canon SX420 IS
Canon SX410 IS
  • $279
  • 1/2.3 inch
  • $199
  • 1/2.3 inch

Compare Canon SX420 IS vs Canon SX410 IS

Compared to Canon SX540 HS

Sigma DP3 Merrill
Canon SX540 HS
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $364
  • 1/2.3 inch
  • In-Camera Image Stabilization
  • Built-in Wi-Fi

Compare Sigma DP3 Merrill vs Canon SX540 HS

Canon SX420 IS
Canon SX540 HS
  • $279
  • 1/2.3 inch
  • Less expensive
  • Lighter weight
  • $364
  • 1/2.3 inch
  • Built-in Wi-Fi
  • NFC

Compare Canon SX420 IS vs Canon SX540 HS

Compare Other Cameras?