Sony RX1 vs Sigma dp1 Quattro

Sony RX1 advantages over Sigma dp1 Quattro

• Focus peaking
  Peaker vs Non-peaker
  Your camera will highlight what's in focus
• Larger sensor
  35mm vs APS-C
  More sensor area. Bigger is (generally) better.
• Bigger pixels
  ~ 5.97 vs 4.33 microns
  Better low-light and dynamic range (all else equal)
• In-camera panoramas
  Yes vs No
  Stitches multiple shots into a panoramic photo
• Larger lens aperture
  f/2.0 vs f/2.8
  Take photos in low-light or isolate your subject
• More telephoto lens reach
  35 mm vs 28 mm
  Capture objects farther away
• Internal flash
  Internal flash vs None
  Useful in a pinch for fill flash
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• Higher max flash sync
  1/4000 vs 1/1250 sec
  Reduce the effect of ambient light in flash shots
• HDMI out
  HDMI out vs None
  Use HDMI output to monitor or review 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 pixels
  24.3 vs 19.6 megapixels
  Higher resolution photos
• Shoots 60p video
  Yes vs No
  A faster framerate can give you more editing options
• Bulb shutter
  Bulb vs No bulb
  Hold the shutter open manually for long exposures
• Faster shutter
  1/4000 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