• 0.98 inch 285.7mm2
  • 4.7 megapixels
  • 28.00mm (35mm eq.)
  • 2/3 inch 58.1mm2
  • 12.0 megapixels
  • 28.00mm - 112.00mm (35mm eq.)

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Differences

Sigma DP1s advantages over Fujifilm X20

  • Larger sensor
    0.98 inch vs 2/3 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 7.84 vs 2.20 microns
    Better low-light and dynamic range (all else equal)
  • Lighter weight
    250g vs 361g
    Lighter weight

Fujifilm X20 advantages over Sigma DP1s

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Larger lens aperture
    f/2.0 vs f/4.0
    Take photos in low-light or isolate your subject
  • More telephoto lens reach
    112 mm vs 28 mm
    Capture objects farther away
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • More dots on screen
    460k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    12.0 vs 4.7 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Longer exposure
    30 vs 15 sec
    Long exposures for night shots
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    12800 vs 800 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
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • 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
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Neither provide
    Hold the shutter open manually for long exposures

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Review Excerpt

The Competition

Compared to Fujifilm X10

Sigma DP1s
Fujifilm X10
  • $300
  • 0.98 inch
  • Larger sensor
  • Bigger pixels
  • $499
  • 2/3 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Fujifilm X20
Fujifilm X10
  • $499
  • 2/3 inch
  • Focus peaking
  • In-camera panoramas
  • $499
  • 2/3 inch

Compared to Pentax WG-3

Sigma DP1s
Pentax WG-3
  • $300
  • 0.98 inch
  • Larger sensor
  • Bigger pixels
  • $289
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
Fujifilm X20
Pentax WG-3
  • $499
  • 2/3 inch
  • Focus peaking
  • Larger sensor
  • $289
  • 1/2.3 inch
  • Waterproof
  • Thinner

Compared to Nikon P7800

Sigma DP1s
Nikon P7800
  • $300
  • 0.98 inch
  • Larger sensor
  • Bigger pixels
  • $500
  • 1/1.7 inch
  • Tilt-swivel screen
  • Eye-level viewfinder
Fujifilm X20
Nikon P7800
  • $499
  • 2/3 inch
  • Focus peaking
  • Larger sensor
  • $500
  • 1/1.7 inch
  • Tilt-swivel screen
  • More telephoto lens reach

Compared to Olympus TG-3

Sigma DP1s
Olympus TG-3
  • $300
  • 0.98 inch
  • Larger sensor
  • Bigger pixels
  • $349
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
Fujifilm X20
Olympus TG-3
  • $499
  • 2/3 inch
  • Focus peaking
  • Larger sensor
  • $349
  • 1/2.3 inch
  • Less expensive
  • Waterproof

Compared to Fujifilm X30

Sigma DP1s
Fujifilm X30
  • $300
  • 0.98 inch
  • Larger sensor
  • Bigger pixels
  • $499
  • 2/3 inch
  • Focus peaking
  • Eye-level viewfinder
Fujifilm X20
Fujifilm X30
  • $499
  • 2/3 inch
  • $499
  • 2/3 inch
  • Tiltable Screen
  • Built-in Wi-Fi
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