• APS-C 369.7mm2
  • 16.1 megapixels
  • ISO 100 - 16,000
  • 4/3 224.9mm2
  • 12.1 megapixels
  • ISO 160 - 6400

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Differences

Sony A57 advantages over Panasonic GF5

  • 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.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Higher effective ISO
    785 vs 618 iso
    Take photos in low light with less noise
  • More dynamic range
    13.0 vs 11.6 evs
    Retain detail in highlight and shadows
  • Longer stills battery life
    More info 550 vs 330 shots
    Capture more photos
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    16.1 vs 12.1 megapixels
    Higher resolution photos
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    10.0 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    25 vs 5 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 GF5 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
  • Thinner
    36 mm vs 80 mm
    Thinner
  • Lighter weight
    364g vs 828g
    Lighter weight
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Similarities

Common Strengths

  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

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 GF5

Review Excerpt

  • We haven’t finished our review of the Sony A57, but we have extensive sample photos and a hands-on report.
  • Small body pairs nicely with compact, retractable Power Zoom lens. Extremely fast autofocus. Worthwhile improvements in image quality. Touchscreen overlays can now be hidden.

  • LCD panel is prone to fingerprint smudges. Weak flash, and no hot shoe. Modest burst performance, and very limited buffer for raw shooting. Noise levels and dynamic range still lag competition.

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 GF5
Nikon D5100
  • $430
  • 4/3
  • Touchscreen
  • Thinner
  • $650
  • APS-C
  • Larger sensor
  • Tilt-swivel screen

Compared to Olympus E-PM1

Sony A57
Olympus E-PM1
  • $800
  • APS-C
  • Focus peaking
  • Larger sensor
  • $500
  • 4/3
  • Lens selection
  • Less expensive
Panasonic GF5
Olympus E-PM1
  • $430
  • 4/3
  • Touchscreen
  • Higher effective ISO
  • $500
  • 4/3
  • In-Camera Image Stabilization
  • Hot shoe

Compared to Panasonic GF3X

Sony A57
Panasonic GF3X
  • $800
  • APS-C
  • Focus peaking
  • Larger sensor
  • $750
  • 4/3
  • Lens selection
  • Touchscreen
Panasonic GF5
Panasonic GF3X
  • $430
  • 4/3
  • Higher effective ISO
  • More dynamic range
  • $750
  • 4/3

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 GF5
Sony A37
  • $430
  • 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 GF5
Pentax K-5 IIs
  • $430
  • 4/3
  • Touchscreen
  • Thinner
  • $497
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
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