Sigma SD15 vs Sony A850

Sony A850 advantages over Sigma SD15

• Lens selection
  Good vs Limited
  Better lens selection gives you more options
• Larger sensor
  35mm vs 0.98 inch
  More sensor area. Bigger is (generally) better.
• In-Camera Image Stabilization
  Yes vs No
  Reduces the effects of camera shake at slower shutter speeds
• Longer stills battery life
  More info

  Longer stills battery life

  Cameras with longer battery life can take more photos before exhausting their batteries.

  Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

  880 vs 250 shots
  Capture more photos
• HDMI out
  HDMI out vs None
  Use HDMI output to monitor or review video
• More dots on screen
  922k vs 460k dots
  Can mean greater resolution or a brighter screen
• More viewfinder magnification
  0.74x vs 0.53x
  Get a bigger view of the scene through the eye-level viewfinder
• More pixels
  24.6 vs 4.7 megapixels
  Higher resolution photos
• Dual card slots
  Yes vs No
  Gives you more storage flexibility
• More AF points
  9 vs 5
  More AF points improve autofocus
• Faster shutter
  1/8000 vs 1/4000 sec
  Shoot wide open in bright light
• Higher extended ISO
  6400 vs 3200 ISO
  Higher extended ISO can give more low-light flexibility