• APS-C 369.7mm2
  • 16.1 megapixels
  • ISO 100 - 16,000
  • 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 28.00mm - 140.00mm (35mm eq.)

Buy From

Differences

Sony A57 advantages over Ricoh WG-30

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 1/2.3 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 1.34 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • 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 300 shots
    Capture more photos
  • 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
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Longer exposure
    30 vs 4 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    10.0 fps vs 1.1 fps
    Faster JPEG shooting (burst mode)
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Ricoh WG-30 advantages over Sony A57

  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • Thinner
    30 mm vs 80 mm
    Thinner
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

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
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

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

Buy From

Your purchases support this site

Your purchases support this site

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
Ricoh WG-30
Nikon D5100
  • $182
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
  • $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
Ricoh WG-30
Sony A37
  • $182
  • 1/2.3 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
Ricoh WG-30
Pentax K-5 IIs
  • $182
  • 1/2.3 inch
  • Waterproof
  • Thinner
  • $497
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Canon T5i

Sony A57
Canon T5i
  • $800
  • APS-C
  • Focus peaking
  • Larger sensor
  • $539
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Ricoh WG-30
Canon T5i
  • $182
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
  • $539
  • APS-C
  • Larger sensor
  • Tilt-swivel screen

Compared to Pentax K-500

Sony A57
Pentax K-500
  • $800
  • APS-C
  • In-camera panoramas
  • Tiltable Screen
  • $597
  • APS-C
  • Lens selection
  • Less expensive
Ricoh WG-30
Pentax K-500
  • $182
  • 1/2.3 inch
  • Waterproof
  • Thinner
  • $597
  • APS-C
  • Focus peaking
  • Larger sensor
Compare Other Cameras?