• APS-C 369.7mm2
  • 24.3 megapixels
  • ISO 100 - 16,000
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 6400

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Differences

Sony A65 advantages over Olympus E-M5 III

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.95 vs 3.36 microns
    Better low-light and dynamic range (all else equal)
  • 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 510 vs 310 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • More pixels
    24.3 vs 20.4 megapixels
    Higher resolution photos
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos

Olympus E-M5 III advantages over Sony A65

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Shoot 4K video
    4K (DCI) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Thinner
    49 mm vs 80 mm
    Thinner
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    5 years vs 13 years old
    Newer cameras often support more advanced features
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    30.0 fps vs 10.0 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/32000 vs 1/4000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Both provide
    Tilt and swivel the screen for maximum shooting flexibility
  • 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
  • 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

  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • 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 A65

Your purchases support this site

Buy the Olympus E-M5 III

Review Excerpt

  • Improved image quality; Very good dynamic range & high ISO performance for a modern MFT sensor; Very fast AF; Excellent image stabilization; 4K video recording; Weather-sealed build quality.

  • Below average battery life; Small size can be awkward with long, heavy lenses; One SD card slot.

The Competition

Compared to Nikon D3200

Sony A65
Nikon D3200
  • $798
  • APS-C
  • Focus peaking
  • Tilt-swivel screen
  • $477
  • APS-C
  • Lens selection
  • Fast startup
Olympus E-M5 III
Nikon D3200
  • $924
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
  • $477
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Nikon D5200

Sony A65
Nikon D5200
  • $798
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $590
  • APS-C
  • Lens selection
  • Fast startup
Olympus E-M5 III
Nikon D5200
  • $924
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $590
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Sony A58

Sony A65
Sony A58
  • $798
  • APS-C
  • Tilt-swivel screen
  • Built-in GPS
  • $598
  • APS-C
  • Less expensive
  • Fast startup
Olympus E-M5 III
Sony A58
  • $924
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $598
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Panasonic G100

Sony A65
Panasonic G100
  • $798
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $599
  • 4/3
  • Lens selection
  • Shoot 4K video
Olympus E-M5 III
Panasonic G100
  • $924
  • 4/3
  • In-Camera Image Stabilization
  • High resolution composite
  • $599
  • 4/3
  • Less expensive
  • In-camera panoramas

Compared to Olympus E-M10 IV

Sony A65
Olympus E-M10 IV
  • $798
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
  • $666
  • 4/3
  • Lens selection
  • Shoot 4K video
Olympus E-M5 III
Olympus E-M10 IV
  • $924
  • 4/3
  • Tilt-swivel screen
  • High resolution composite
  • $666
  • 4/3
  • Less expensive
  • Longer video battery life
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