• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 25,600
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

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Differences

Sony A7R advantages over Olympus E-M5 II

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.88 vs 3.75 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Better color depth
    25.6 vs 23.0 bits
    Capture richer, more accurate colors
  • Higher effective ISO
    2,746 vs 908 iso
    Take photos in low light with less noise
  • More dynamic range
    14.1 vs 12.4 evs
    Retain detail in highlight and shadows
  • More pixels
    36.4 vs 16.1 megapixels
    Higher resolution photos
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M5 II advantages over Sony A7R

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $799 vs $1799
    Save money for lenses or accessories
  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • 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
  • Fast startup
    ~0.80 vs 2.0 sec
    Faster startup lets you catch the moment
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Less shutter lag
    0.14 vs 0.36 sec
    Focus and take a photo quickly (wide angle)
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    10.4 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    10.4 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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 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
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Review Excerpt

  • Incredibly small body for a fully-featured, full-frame camera; Resolution that rivals a medium-format camera; Excellent image quality even at very high sensitivities; Decent performance bearing in mind its extremely high resolution; Accepts existing Alpha-mount and E-mount lenses, and can optionally crop to APS-C image circle.

  • Extreme resolution makes focus and lens quality critical; Modest performance; Loud shutter; Lacks hybrid autofocus of the A7; Mediocre battery life when using electronic viewfinder; Slow X-sync; Limited selection of native Sony FE lenses.

  • Excellent handling in a compact, weather-sealed body; Crisp, roomy electronic viewfinder; Image quality that can take the fight to APS-C DSLRs; Unique high-res mode lets it bat far above its weight for static scenes; Extremely fast 10 fps burst shooting, Excellent video feature set

  • Control dials are easily bumped; Below-average battery life at default settings; Buffer depths for raw shooters are a bit limited; 16-megapixel sensor resolution feels dated; Weak bundled flash strobe

The Competition

Compared to Sony A7

Sony A7R
Sony A7
  • $1849
  • 35mm
  • Higher effective ISO
  • More pixels
  • $798
  • 35mm
  • Less expensive
  • Bigger pixels
Olympus E-M5 II
Sony A7
  • $799
  • 4/3
  • Lens selection
  • Less expensive
  • $798
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Sony A7R II

Sony A7R
Sony A7R II
  • $1849
  • 35mm
  • Lighter weight
  • $1598
  • 35mm
  • In-Camera Image Stabilization
  • Shoot 4K video
Olympus E-M5 II
Sony A7R II
  • $799
  • 4/3
  • Lens selection
  • Less expensive
  • $1598
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Olympus E-M10 II

Sony A7R
Olympus E-M10 II
  • $1849
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $442
  • 4/3
  • Lens selection
  • Less expensive
Olympus E-M5 II
Olympus E-M10 II
  • $799
  • 4/3
  • Tilt-swivel screen
  • High resolution composite
  • $442
  • 4/3
  • Less expensive
  • Internal flash

Compared to Leica M (Typ 262)

Sony A7R
Leica M (Typ 262)
  • $1849
  • 35mm
  • Lens selection
  • Focus peaking
  • $4530
  • 35mm
  • Bigger pixels
  • Newer
Olympus E-M5 II
Leica M (Typ 262)
  • $799
  • 4/3
  • Lens selection
  • Focus peaking
  • $4530
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Panasonic GX85

Sony A7R
Panasonic GX85
  • $1849
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Lens selection
  • Less expensive
Olympus E-M5 II
Panasonic GX85
  • $799
  • 4/3
  • Tilt-swivel screen
  • High resolution composite
  • $598
  • 4/3
  • Less expensive
  • Shoot 4K video
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