Pentax 645Z vs Sigma fp L

Pentax 645Z advantages over Sigma fp L

• Larger sensor
  Medium format vs 35mm
  More sensor area. Bigger is (generally) better.
• Eye-level viewfinder
  Eye-level vs Rear display only
  You'll be able to frame photos even when the sun is out
• Bigger pixels
  ~ 5.31 vs 3.78 microns
  Better low-light and dynamic range (all else equal)
• Tiltable Screen
  Tiltable vs Fixed
  Tilt the screen for shooting flexbility
• 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

  650 vs 240 shots
  Capture more photos
• Top deck display
  Yes vs No
  Check settings with a screen on top of the camera
• Higher max flash sync
  1/125 vs 1/15 sec
  Reduce the effect of ambient light in flash shots
• Dual card slots
  Yes vs No
  Gives you more storage flexibility
• Lacks anti-aliasing filter
  No Filter vs Filter
  Enjoy sharper photos
• Higher extended ISO
  204800 vs 102400 ISO
  Higher extended ISO can give more low-light flexibility