• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 25600
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25600

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Advantages

Sony A7R over Olympus E-M10

  • 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)
  • 60p
    Yes vs No
    A faster framerate can give you more editing options
  • External Mic
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • More pixels
    36.4 vs 16.1 megapixels
    Higher resolution photos
  • 24p
    Yes vs No
    Gives your movies a big-screen feel
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light

Olympus E-M10 over Sony A7R

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Fast startup
    1.30 vs 2.00 sec
    Faster startup lets you catch the moment
  • Touchscreen
    Touch vs No touch
    Love or hate them, they can be useful
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Less shutter lag
    0.234 vs 0.359 sec
    Focus and take a photo quickly (wide angle)
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Longer shutter
    60 vs 30 sec
    Long exposures for night shots
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos and video

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.

  • Great image quality especially from RAW files; Excellent dynamic range for a Four Thirds sensor; Very good high ISO performance; Realistic colors and excellent hue accuracy; Built-in Wi-Fi with remote control and sharing features; Improved HD video; Lightweight and very portable; Built-in pop-up flash; Minimal EVF lag time.

  • Contrast-Detect AF struggles with small and low-contrast subjects; Mediocre battery life; No external microphone or headphone jack; Mediocre burst speed with continuous AF; No weather sealing; Heavy-handed high ISO noise reduction.

The Competition

Compared to Sony A7

Sony A7R
Sony A7
  • $2098
  • 35mm
  • More pixels
  • Lighter weight
  • $1298
  • 35mm
  • Bigger pixels
  • On-sensor phase detect
Olympus E-M10
Sony A7
  • $699
  • 4/3
  • Lens selection
  • Fast startup
  • $1298
  • 35mm
  • Larger sensor
  • Bigger pixels

Compared to Nikon V2

Sony A7R
Nikon V2
  • $2098
  • 35mm
  • Focus peaking
  • Lens selection
  • $772
  • 1 inch
  • On-sensor phase detect
  • Higher max flash sync
Olympus E-M10
Nikon V2
  • $699
  • 4/3
  • Focus peaking
  • Lens selection
  • $772
  • 1 inch
  • On-sensor phase detect
  • 60p

Compared to Panasonic G6

Sony A7R
Panasonic G6
  • $2098
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $648
  • 4/3
  • Lens selection
  • Touchscreen
Olympus E-M10
Panasonic G6
  • $699
  • 4/3
  • In-Camera Image Stabilization
  • Higher max flash sync
  • $648
  • 4/3
  • 60p
  • External Mic

Compared to Samsung Galaxy NX

Sony A7R
Samsung Galaxy NX
  • $2098
  • 35mm
  • Lens selection
  • Larger sensor
  • $1029
  • APS-C
  • Touchscreen
  • GPS
Olympus E-M10
Samsung Galaxy NX
  • $699
  • 4/3
  • Lens selection
  • Tiltable Screen
  • $1029
  • APS-C
  • Larger sensor
  • GPS

Compared to Panasonic GX7

Sony A7R
Panasonic GX7
  • $2098
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Lens selection
  • Fast startup
Olympus E-M10
Panasonic GX7
  • $699
  • 4/3
  • Bigger RAW buffer
  • $598
  • 4/3
  • Fast startup
  • 60p
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