• APS-C 369.7mm2
  • 24.3 megapixels
  • ISO 100 - 16,000
  • 35mm 858.0mm2
  • 24.6 megapixels
  • ISO 100 - 25,600

Buy From

Differences

Sony A77 advantages over Sigma fp

  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • Higher max flash sync
    1/250 vs 1/30 sec
    Reduce the effect of ambient light in flash shots
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos

Sigma fp advantages over Sony A77

  • Less expensive
    $1599 vs $1899
    Save money for lenses or accessories
  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.98 vs 3.95 microns
    Better low-light and dynamic range (all else equal)
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Thinner
    45 mm vs 80 mm
    Thinner
  • Newer
    5 years vs 13 years old
    Newer cameras often support more advanced features
  • More dots on screen
    2100k vs 922k dots
    Can mean greater resolution or a brighter screen
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Faster JPEG shooting
    18.0 fps vs 11.6 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    18.0 fps vs 11.6 fps
    Faster RAW shooting in burst mode
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    102400 vs 16000 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • 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

  • 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
  • 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

User reviews

Buy From

Your purchases support this site

Buy the Sony A77
Body Only
  • Body Only
  • Kit with 16-50mm Lens
  • Kit with 18-135mm Lens
All A77 Deals

Your purchases support this site

Buy the Sigma fp
Body Only
  • Body Only
  • Kit with 45mm f/2.8 lens
All fp Deals

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.

  • Read our Sony A77 Full Review

The Competition

Compared to Canon 7D

Sony A77
Canon 7D
  • $1899
  • APS-C
  • Tilt-swivel screen
  • Focus peaking
  • $1499
  • APS-C
  • Lens selection
  • Less expensive

Compare Sony A77 vs Canon 7D

Sigma fp
Canon 7D
  • $1480
  • 35mm
  • Focus peaking
  • Larger sensor
  • $1499
  • APS-C
  • Eye-level viewfinder
  • Internal flash

Compare Sigma fp vs Canon 7D

Compared to Canon 70D

Sony A77
Canon 70D
  • $1899
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $999
  • APS-C
  • Lens selection
  • Less expensive

Compare Sony A77 vs Canon 70D

Sigma fp
Canon 70D
  • $1480
  • 35mm
  • Focus peaking
  • Larger sensor
  • $999
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compare Sigma fp vs Canon 70D

Compared to Sony A77 II

Sony A77
Sony A77 II
  • $1899
  • APS-C
  • Built-in GPS
  • $1198
  • APS-C
  • Built-in Wi-Fi
  • NFC

Compare Sony A77 vs Sony A77 II

Sigma fp
Sony A77 II
  • $1480
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $1198
  • APS-C
  • Tilt-swivel screen
  • Eye-level viewfinder

Compare Sigma fp vs Sony A77 II

Compared to Sony A7C

Sony A77
Sony A7C
  • $1899
  • APS-C
  • In-camera panoramas
  • Built-in GPS
  • $1598
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Sony A77 vs Sony A7C

Sigma fp
Sony A7C
  • $1480
  • 35mm
  • Thinner
  • More dots on screen
  • $1598
  • 35mm
  • Tilt-swivel screen
  • Eye-level viewfinder

Compare Sigma fp vs Sony A7C

Compared to Sigma fp L

Sony A77
Sigma fp L
  • $1899
  • APS-C
  • Tilt-swivel screen
  • Eye-level viewfinder
  • $2499
  • 35mm
  • Larger sensor
  • Shoot 4K video

Compare Sony A77 vs Sigma fp L

Sigma fp
Sigma fp L
  • $1480
  • 35mm
  • Bigger pixels
  • Higher max flash sync
  • $2499
  • 35mm
  • Newer
  • More pixels

Compare Sigma fp vs Sigma fp L

Compare Other Cameras?