• APS-C 369.7mm2
  • 24.3 megapixels
  • ISO 100 - 16,000
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Sony A77 advantages over Olympus E-P5

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    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
  • Longer stills battery life
    More info 530 vs 330 shots
    Capture more photos
  • More telephoto lens reach
    75 mm vs 34 mm
    Capture objects farther away with the kit lens
  • 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
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More pixels
    24.3 vs 16.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Wider angle kit lens
    24 mm vs 34 mm
    Capture more of the scene with the included lens
  • Faster JPEG shooting
    11.6 fps vs 9.9 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    11.6 fps vs 9.9 fps
    Faster RAW shooting in burst mode

Olympus E-P5 advantages over Sony A77

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $849 vs $1000
    Save money for lenses or accessories
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Higher effective ISO
    895 vs 801 iso
    Take photos in low light with less noise
  • Thinner
    37 mm vs 80 mm
    Thinner
  • Lighter weight
    545g vs 1363g
    Lighter weight
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Higher extended ISO
    25600 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
  • 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

  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

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.

  • Handsome retro styling; Very good image quality and dynamic range, with competitive high ISO performance; Lightning fast autofocusing; Excellent burst speeds (nearly 10fps at full res); Top shutter speed of 1/8000 second; Sharp, bright 17mm f/1.8 kit lens; 3-inch tilting touchscreen LCD with 1.04M dots of resolution.

  • Heavier than some mirrorless models; Weak flash; Below average battery life; No built-in viewfinder (but EVF available in a kit or for separate purchase); A bit pricey compared to the similar E-M5, which offers a built-in EVF and weather sealing at about the same price.

The Competition

Compared to Nikon D7100

Sony A77
Nikon D7100
  • $772
  • APS-C
  • Focus peaking
  • Tilt-swivel screen
  • $897
  • APS-C
  • Lens selection
  • Fast startup
Olympus E-P5
Nikon D7100
  • $399
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $897
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Panasonic GF6

Sony A77
Panasonic GF6
  • $772
  • APS-C
  • Focus peaking
  • Larger sensor
  • $400
  • 4/3
  • Lens selection
  • Less expensive
Olympus E-P5
Panasonic GF6
  • $399
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $400
  • 4/3
  • Less expensive
  • In-camera panoramas

Compared to Canon 70D

Sony A77
Canon 70D
  • $772
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $927
  • APS-C
  • Lens selection
  • Less expensive
Olympus E-P5
Canon 70D
  • $399
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $927
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Pentax K-3

Sony A77
Pentax K-3
  • $772
  • APS-C
  • Tilt-swivel screen
  • In-camera panoramas
  • $699
  • APS-C
  • Lens selection
  • Higher effective ISO
Olympus E-P5
Pentax K-3
  • $399
  • 4/3
  • Less expensive
  • Touchscreen
  • $699
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Olympus E-PL7

Sony A77
Olympus E-PL7
  • $772
  • APS-C
  • Larger sensor
  • Tilt-swivel screen
  • $399
  • 4/3
  • Lens selection
  • Less expensive
Olympus E-P5
Olympus E-PL7
  • $399
  • 4/3
  • Internal flash
  • Faster JPEG shooting
  • $399
  • 4/3
  • Less expensive
  • Fast startup
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