• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 16,000
  • APS-C 369.0mm2
  • 19.6 megapixels
  • 28.00mm (35mm eq.)

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Differences

Sony A58 advantages over Sigma dp1 Quattro

  • Less expensive
    $600 vs $999 (MSRP)
    Save money for lenses or accessories
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • Longer stills battery life
    More info 700 vs 200 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • 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
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    16000 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Sigma dp1 Quattro advantages over Sony A58

  • Higher max flash sync
    1/1250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Higher-res screen
    307k vs 154k pixels
    More detail on the screen lets you judge focus and composition
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • 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
  • 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

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Buy the Sigma dp1 Quattro

Review Excerpt

  • Improved 20.1-megapixel resolution; Impressive image quality, especially for its price; Fast and decisive autofocus (in most conditions); Very good battery life; Good video quality (Full HD 1080p, though it doesn't support 60p frame rate).

  • Plastic lens mount; Slower burst mode speeds and shallower buffer than A57; LCD no longer fully articulating; Mediocre kit lens; Electronic instead of an optical viewfinder may be a turnoff for some.

The Competition

Compared to Pentax K-5 IIs

Sony A58
Pentax K-5 IIs
  • $598
  • APS-C
  • Less expensive
  • Focus peaking
  • $497
  • APS-C
  • Lens selection
  • Fast startup
Sigma dp1 Quattro
Pentax K-5 IIs
  • $999
  • APS-C
  • Less expensive
  • Higher max flash sync
  • $497
  • APS-C
  • Eye-level viewfinder
  • In-Camera Image Stabilization

Compared to Nikon D5200

Sony A58
Nikon D5200
  • $598
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $590
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Sigma dp1 Quattro
Nikon D5200
  • $999
  • APS-C
  • Higher max flash sync
  • Doesn't require an AA filter
  • $590
  • APS-C
  • Tilt-swivel screen
  • Eye-level viewfinder

Compared to Canon T5i

Sony A58
Canon T5i
  • $598
  • APS-C
  • Focus peaking
  • Larger sensor
  • $539
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Sigma dp1 Quattro
Canon T5i
  • $999
  • APS-C
  • Larger sensor
  • Higher max flash sync
  • $539
  • APS-C
  • Tilt-swivel screen
  • Eye-level viewfinder

Compared to Sigma dp2 Quattro

Sony A58
Sigma dp2 Quattro
  • $598
  • APS-C
  • Focus peaking
  • Eye-level viewfinder
  • $899
  • APS-C
  • Higher max flash sync
  • Higher-res screen
Sigma dp1 Quattro
Sigma dp2 Quattro
  • $999
  • APS-C
  • Wider angle lens
  • $899
  • APS-C
  • More telephoto lens reach

Compared to Sigma dp3 Quattro

Sony A58
Sigma dp3 Quattro
  • $598
  • APS-C
  • Less expensive
  • Focus peaking
  • $999
  • APS-C
  • Higher max flash sync
  • Higher-res screen
Sigma dp1 Quattro
Sigma dp3 Quattro
  • $999
  • APS-C
  • Wider angle lens
  • $999
  • APS-C
  • More telephoto lens reach
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