• APS-C 369.7mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • 4/3 224.9mm2
  • 16.0 megapixels
  • ISO 200 - 25,600

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Differences

Sony A55 advantages over Panasonic G7

  • 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)
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Faster JPEG shooting
    9.0 fps vs 8.1 fps
    Faster JPEG shooting (burst mode)

Panasonic G7 advantages over Sony A55

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Newer
    10 years vs 14 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Lighter weight
    542g vs 727g
    Lighter weight
  • 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
  • Bigger JPEG buffer
    240 vs 32 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • 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

  • 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 Sony A55

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Buy the Panasonic G7
Kit with 14-42mm Lens (Silver)
  • Kit with 14-42mm Lens (Silver)
  • Kit with 14-140mm Lens (Black)
  • Kit with 14-42mm Lens (Black)
All G7 Deals

Review Excerpt

  • Compact and lightweight for a fully-featured interchangeable-lens camera; Really fast autofocus; Good all-around performance too; Generous buffer depth; Versatile tilt/swivel LCD and high-res viewfinder; Touch-screen controls; Very affordable pricetag

  • Out of the box, colors are muted by consumer standards; Warm white balance under incandescent light; Handgrip is a little shallow for those with larger hands; Wi-Fi is overly complex and has limited range

  • Read our Panasonic G7 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 G7
Canon T2i
  • $498
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
  • $692
  • APS-C
  • Larger sensor
  • Fast startup

Compare Panasonic G7 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 G7
Sony A33
  • $498
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $540
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compare Panasonic G7 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 G7
Sony A35
  • $498
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $567
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compare Panasonic G7 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 G7
Panasonic G6
  • $498
  • 4/3
  • Shoot 4K video
  • Faster JPEG shooting
  • $399
  • 4/3
  • Less expensive
  • NFC

Compare Panasonic G7 vs Panasonic G6

Compared to Panasonic GH4

Sony A55
Panasonic GH4
  • $734
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $898
  • 4/3
  • Lens selection
  • Focus peaking

Compare Sony A55 vs Panasonic GH4

Panasonic G7
Panasonic GH4
  • $498
  • 4/3
  • Less expensive
  • In-camera panoramas
  • $898
  • 4/3
  • Fast startup
  • NFC

Compare Panasonic G7 vs Panasonic GH4

Compare Other Cameras?