• APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 200 - 12,800
  • APS-C 369.7mm2
  • 24.3 megapixels
  • ISO 100 - 16,000

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Differences

Sony DSLR-A550 advantages over Sony A77

  • Less expensive
    $1050 vs $2000 (MSRP)
    Save money for lenses or accessories
  • Bigger pixels
    ~ 5.16 vs 3.95 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.50 vs 0.8 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 950 vs 530 shots
    Capture more photos
  • Lighter weight
    912g vs 1363g
    Lighter weight

Sony A77 advantages over Sony DSLR-A550

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • More dynamic range
    13.2 vs 11.8 evs
    Retain detail in highlight and shadows
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    11 vs 1
    Cross-type AF points improve autofocus performance
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • 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
  • More viewfinder magnification
    0.73x vs 0.53x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    24.3 vs 14.2 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • More AF points
    19 vs 9
    More AF points improve autofocus
  • Wider angle kit lens
    24 mm vs 27 mm
    Capture more of the scene with the included lens
  • Faster JPEG shooting
    11.6 fps vs 6.7 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • 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
  • 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

  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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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Your purchases support this site

Buy the Sony A77

Review Excerpt

  • Very fast top frame rate; full-time phase-detect autofocus; Full 60p HD video; Excellent kit lens; Very good high-resolution sensor.

  • Heavy; EVF appears dim when used in bright light; AF tracking in Movie mode was unreliable in our testing.

The Competition

Compared to Canon 50D

Sony DSLR-A550
Canon 50D
  • $859
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
  • $1000
  • APS-C
  • Lens selection
  • Fast startup
Sony A77
Canon 50D
  • $1899
  • APS-C
  • Focus peaking
  • Tilt-swivel screen
  • $1000
  • APS-C
  • Lens selection
  • Less expensive

Compared to Nikon D300S

Sony DSLR-A550
Nikon D300S
  • $859
  • APS-C
  • In-Camera Image Stabilization
  • Tiltable Screen
  • $1663
  • APS-C
  • Lens selection
  • Fast startup
Sony A77
Nikon D300S
  • $1899
  • APS-C
  • Tilt-swivel screen
  • Focus peaking
  • $1663
  • APS-C
  • Lens selection
  • Bigger pixels

Compared to Sony DSLR-A500

Sony DSLR-A550
Sony DSLR-A500
  • $859
  • APS-C
  • More dots on screen
  • More pixels
  • $850
  • APS-C
  • Less expensive
Sony A77
Sony DSLR-A500
  • $1899
  • APS-C
  • Focus peaking
  • Tilt-swivel screen
  • $850
  • APS-C
  • Less expensive
  • Bigger pixels

Compared to Canon 7D

Sony DSLR-A550
Canon 7D
  • $859
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $1499
  • APS-C
  • Lens selection
  • More telephoto lens reach
Sony A77
Canon 7D
  • $1899
  • APS-C
  • Tilt-swivel screen
  • Focus peaking
  • $1499
  • APS-C
  • Lens selection
  • Fast startup

Compared to Sony A77 II

Sony DSLR-A550
Sony A77 II
  • $859
  • APS-C
  • Bigger pixels
  • Fast startup
  • $1198
  • APS-C
  • Tilt-swivel screen
  • Focus peaking
Sony A77
Sony A77 II
  • $1899
  • APS-C
  • Built-in GPS
  • $1198
  • APS-C
  • Built-in Wi-Fi
  • NFC
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