Sony A55 vs Panasonic G3

Sony A55 advantages over Panasonic G3

• Larger sensor
  APS-C vs 4/3
  More sensor area. Bigger is (generally) better.
• In-Camera Image Stabilization
  Yes vs No
  Reduces the effects of camera shake at slower shutter speeds
• Bigger pixels
  ~ 4.82 vs 3.77 microns
  Better low-light and dynamic range (all else equal)
• In-camera panoramas
  Yes vs No
  Stitches multiple shots into a panoramic photo
• Fast startup
  ~0.90 vs 1.4 sec
  Faster startup lets you catch the moment
• Higher effective ISO

  Higher effective ISO

  Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.

  Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.

  You can learn more at our glossary entry.

  Maximum effective ISO test data courtesy of DxO Mark.

  A55 test data on DxO Mark G3 test data on DxO Mark
  818 vs 667 iso
  Take photos in low light with less noise
• More dynamic range

  More dynamic range

  Cameras with more dynamic range allow you to take photos with dramatic differences in highlight and shadow areas while retaining detail in both.

  Think of a brilliant sunset on a rocky beach: Bright sunset in the background, with dark rocks in the foreground. High dynamic range means more of the extremes will be faithfully reproduced.

  Dynamic range test data courtesy of DxO Mark.

  A55 test data on DxO Mark G3 test data on DxO Mark
  12.4 vs 10.6 evs
  Retain detail in highlight and shadows
• Built-in GPS
  GPS vs None
  Geotag your photos
• 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

  330 vs 270 shots
  Capture more photos
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• More dots on screen
  922k vs 460k dots
  Can mean greater resolution or a brighter screen
• Faster JPEG shooting
  9.0 fps vs 3.4 fps
  Faster JPEG shooting (burst mode)
• Bigger JPEG buffer
  32 vs 7 shots
  Take more JPEG shots before waiting (burst mode)
• Higher extended ISO
  25600 vs 6400 ISO
  Higher extended ISO can give more low-light flexibility