• APS-C 369.7mm2
  • 16.1 megapixels
  • ISO 100 - 16,000
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 160 - 12,800

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Differences

Sony A57 advantages over Panasonic G5

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • Longer stills battery life
    More info 550 vs 310 shots
    Capture more photos
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Faster JPEG shooting
    10.0 fps vs 6.2 fps
    Faster JPEG shooting (burst mode)
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Panasonic G5 advantages over Sony A57

  • 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
  • Lighter weight
    575g vs 828g
    Lighter weight
  • 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

  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • 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

Review Excerpt

  • We haven’t finished our review of the Sony A57, but we have extensive sample photos and a hands-on report.
  • 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.

The Competition

Compared to Nikon D5100

Sony A57
Nikon D5100
  • $800
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Panasonic G5
Nikon D5100
  • $500
  • 4/3
  • Less expensive
  • Touchscreen
  • $650
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Sony A37

Sony A57
Sony A37
  • $800
  • APS-C
  • Longer stills battery life
  • Higher-res screen
  • $600
  • APS-C
  • Less expensive
  • External Mic Jack
Panasonic G5
Sony A37
  • $500
  • 4/3
  • Lens selection
  • Touchscreen
  • $600
  • APS-C
  • Focus peaking
  • Larger sensor

Compared to Pentax K-5 IIs

Sony A57
Pentax K-5 IIs
  • $800
  • APS-C
  • Less expensive
  • Focus peaking
  • $497
  • APS-C
  • Lens selection
  • Higher effective ISO
Panasonic G5
Pentax K-5 IIs
  • $500
  • 4/3
  • Touchscreen
  • Tiltable Screen
  • $497
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compared to Panasonic G6

Sony A57
Panasonic G6
  • $800
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $399
  • 4/3
  • Tilt-swivel screen
  • Lens selection
Panasonic G5
Panasonic G6
  • $500
  • 4/3
  • $399
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compared to Panasonic G7

Sony A57
Panasonic G7
  • $800
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $498
  • 4/3
  • Lens selection
  • Tilt-swivel screen
Panasonic G5
Panasonic G7
  • $500
  • 4/3
  • $498
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
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