• APS-C 369.7mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 160 - 12,800

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Differences

Sony A55 advantages over Panasonic G5

  • 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 3.75 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 1.3 sec
    Faster startup lets you catch the moment
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Faster JPEG shooting
    9.0 fps vs 6.2 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    32 vs 18 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Panasonic G5 advantages over Sony A55

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Panasonic G5
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  • Body Only
  • Kit with 14-42mm Lens
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Review Excerpt

  • Small, compact body with excellent focusing and exposure capabilities; Newly enhanced touchpanel LCD screen makes image capture and review a joy; Excellent HD video recording quality.

  • Some controls difficult to access; Too easy to activate menus and options while shooting; Lack of a microphone-in jack limits video recording usefulness.

  • Read our Panasonic G5 Review

The Competition

Compared to Canon T2i

Sony A55
Canon T2i
  • $734
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $692
  • APS-C
  • Lens selection
  • Fast startup

Compare Sony A55 vs Canon T2i

Panasonic G5
Canon T2i
  • $500
  • 4/3
  • Touchscreen
  • Tiltable Screen
  • $692
  • APS-C
  • Larger sensor
  • Fast startup

Compare Panasonic G5 vs Canon T2i

Compared to Sony A33

Sony A55
Sony A33
  • $734
  • APS-C
  • Higher effective ISO
  • Built-in GPS
  • $540
  • APS-C

Compare Sony A55 vs Sony A33

Panasonic G5
Sony A33
  • $500
  • 4/3
  • Lens selection
  • Touchscreen
  • $540
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compare Panasonic G5 vs Sony A33

Compared to Sony A35

Sony A55
Sony A35
  • $734
  • APS-C
  • Tiltable Screen
  • Built-in GPS
  • $567
  • APS-C
  • Less expensive
  • Longer stills battery life

Compare Sony A55 vs Sony A35

Panasonic G5
Sony A35
  • $500
  • 4/3
  • Lens selection
  • Touchscreen
  • $567
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compare Panasonic G5 vs Sony A35

Compared to Panasonic G6

Sony A55
Panasonic G6
  • $734
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $399
  • 4/3
  • Tilt-swivel screen
  • Lens selection

Compare Sony A55 vs Panasonic G6

Panasonic G5
Panasonic G6
  • $500
  • 4/3
  • $399
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Panasonic G5 vs Panasonic G6

Compared to Panasonic G7

Sony A55
Panasonic G7
  • $734
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $498
  • 4/3
  • Lens selection
  • Focus peaking

Compare Sony A55 vs Panasonic G7

Panasonic G5
Panasonic G7
  • $500
  • 4/3
  • $498
  • 4/3
  • Focus peaking
  • Tilt-swivel screen

Compare Panasonic G5 vs Panasonic G7

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