• APS-C 369.7mm2
  • 14.2 megapixels
  •  
  • APS-C 355.7mm2
  • 14.2 megapixels
  • ISO 100 - 3200

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Differences

Sony NEX-3 advantages over Nikon D3100

  • Less expensive
    $600 vs $700 (MSRP)
    Save money for lenses or accessories
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Thinner
    33 mm vs 74 mm
    Thinner
  • Lighter weight
    511g vs 777g
    Lighter weight
  • More dots on screen
    922k vs 230k dots
    Can mean greater resolution or a brighter screen

Nikon D3100 advantages over Sony NEX-3

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Fast startup
    ~0.40 vs 1.0 sec
    Faster startup lets you catch the moment
  • Higher effective ISO
    919 vs 830 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 550 vs 330 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Less shutter lag
    0.28 vs 0.44 sec
    Focus and take a photo quickly (wide angle)
  • Bigger JPEG buffer
    100 vs 38 shots
    Take more JPEG shots before waiting (burst mode)

Similarities

Common Strengths

  • 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

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • 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
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • 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

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Review Excerpt

The Competition

Compared to Sony DSLR-A380

Sony NEX-3
Sony DSLR-A380
  • $600
  • APS-C
  • Less expensive
  • In-camera panoramas
  • $849
  • APS-C
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Nikon D3100
Sony DSLR-A380
  • $700
  • APS-C
  • Lens selection
  • Less expensive
  • $849
  • APS-C
  • In-Camera Image Stabilization
  • Tiltable Screen

Compared to Sony NEX-5

Sony NEX-3
Sony NEX-5
  • $600
  • APS-C
  • Less expensive
  • $700
  • APS-C
Nikon D3100
Sony NEX-5
  • $700
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $700
  • APS-C
  • In-camera panoramas
  • Tiltable Screen

Compared to Sony A33

Sony NEX-3
Sony A33
  • $600
  • APS-C
  • Less expensive
  • Higher effective ISO
  • $540
  • APS-C
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Nikon D3100
Sony A33
  • $700
  • APS-C
  • Lens selection
  • Fast startup
  • $540
  • APS-C
  • In-Camera Image Stabilization
  • In-camera panoramas

Compared to Sony NEX-C3

Sony NEX-3
Sony NEX-C3
  • $600
  • APS-C
  • Bigger JPEG buffer
  • $559
  • APS-C
  • Higher effective ISO
  • Longer stills battery life
Nikon D3100
Sony NEX-C3
  • $700
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $559
  • APS-C
  • Less expensive
  • In-camera panoramas

Compared to Sony NEX-5N

Sony NEX-3
Sony NEX-5N
  • $600
  • APS-C
  • Less expensive
  • Fast startup
  • $700
  • APS-C
  • Higher effective ISO
  • Longer stills battery life
Nikon D3100
Sony NEX-5N
  • $700
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $700
  • APS-C
  • In-camera panoramas
  • Tiltable Screen
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