• APS-C 369.7mm2
  • 16.1 megapixels
  • ISO 100 - 16,000
  • 1/2.33 inch 28.2mm2
  • 16.1 megapixels
  • 25.00mm - 100.00mm (35mm eq.)

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Differences

Sony A57 advantages over Panasonic TS30

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 1/2.33 inch
    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
  • Bigger pixels
    ~ 4.82 vs 1.33 microns
    Better low-light and dynamic range (all else equal)
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Longer stills battery life
    More info 550 vs 250 shots
    Capture more photos
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More dots on screen
    922k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • 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
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    10.0 fps vs 1.3 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/4000 vs 1/1300 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Panasonic TS30 advantages over Sony A57

  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • Thinner
    19 mm vs 80 mm
    Thinner
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Bigger JPEG buffer
    Unlimited vs 25 shots
    Take more JPEG shots before waiting (burst mode)

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • Internal flash
    Both provide
    Useful in a pinch for fill flash

Common Weaknesses

  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • 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
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • 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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Review Excerpt

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 TS30
Nikon D5100
  • $168
  • 1/2.33 inch
  • Waterproof
  • In-Camera Image Stabilization
  • $650
  • APS-C
  • Larger sensor
  • Tilt-swivel screen

Compared to Panasonic TS20

Sony A57
Panasonic TS20
  • $800
  • APS-C
  • Focus peaking
  • Larger sensor
  • $119
  • 1/2.33 inch
  • Less expensive
  • Waterproof
Panasonic TS30
Panasonic TS20
  • $168
  • 1/2.33 inch
  • In-camera panoramas
  • Longer exposure
  • $119
  • 1/2.33 inch

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 TS30
Sony A37
  • $168
  • 1/2.33 inch
  • Waterproof
  • Thinner
  • $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 TS30
Pentax K-5 IIs
  • $168
  • 1/2.33 inch
  • Waterproof
  • In-camera panoramas
  • $497
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Olympus TG-630

Sony A57
Olympus TG-630
  • $800
  • APS-C
  • Focus peaking
  • Larger sensor
  • $199
  • 1/2.3 inch
  • Less expensive
  • Waterproof
Panasonic TS30
Olympus TG-630
  • $168
  • 1/2.33 inch
  • In-camera panoramas
  • More pixels
  • $199
  • 1/2.3 inch
  • Bigger pixels
  • More telephoto lens reach
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