• 35mm 860.4mm2
  • 16.2 megapixels
  • ISO 100 - 25,600
  • APS-C 366.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600

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Differences

Nikon D4S advantages over Sony A5100

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 7.31 vs 3.92 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.20 vs 2.0 sec
    Faster startup lets you catch the moment
  • Higher effective ISO
    3,074 vs 1,347 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 3020 vs 400 shots
    Capture more photos
  • 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
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Higher-res screen
    307k vs 230k pixels
    More detail on the screen lets you judge focus and composition
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Faster JPEG shooting
    10.6 fps vs 6.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    200 vs 67 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    10.8 fps vs 6.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    78 vs 25 shots
    Larger buffer for RAW shots (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    409600 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Sony A5100 advantages over Nikon D4S

  • Less expensive
    $448 vs $5869*
    Save money for lenses or accessories
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    35 mm vs 90 mm
    Thinner
  • More pixels
    24.3 vs 16.2 megapixels
    Higher resolution photos

Similarities

Common Strengths

  • HDMI out
    Both provide
    Use an external screen to monitor or review video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Sony A5100

Review Excerpt

  • Excellent, tank-like build quality; First-rate ergonomics a pro would expect; Superb performance with confident autofocus; Great image quality; Big, bright viewfinder with 100% coverage; Excellent battery life; Doubles as a powerful video capture tool

  • Fairly minor upgrade over the D4; Image quality improvements apply only to JPEG; XQD card format isn't broadly accepted; Consumer-friendly default JPEG processing may turn off some pros; Body is large and hefty (but that's normal for pro gear)

  • Very small and comfortable form factor; Very good image quality for its class; New dual video record function; Quick autofocus and good dynamic range.

  • Lacks an EVF and external mode dial; No hot shoe; JPEG processing at higher ISOs not as good as some competing mid-level models.

The Competition

Compared to Canon 1DX

Nikon D4S
Canon 1DX
  • $6183
  • 35mm
  • Fast startup
  • Higher effective ISO
  • $5499
  • 35mm
  • More cross-type AF points
  • Less shutter lag
Sony A5100
Canon 1DX
  • $348
  • APS-C
  • Less expensive
  • Focus peaking
  • $5499
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Nikon D4

Nikon D4S
Nikon D4
  • $6183
  • 35mm
  • Fast startup
  • Newer
  • $6248
  • 35mm
  • Bigger JPEG buffer
  • Bigger RAW buffer
Sony A5100
Nikon D4
  • $348
  • APS-C
  • Less expensive
  • Focus peaking
  • $6248
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Canon EOS-1D C

Nikon D4S
Canon EOS-1D C
  • $6183
  • 35mm
  • Higher extended ISO
  • $6989
  • 35mm
  • Shoot 4K video
  • More cross-type AF points
Sony A5100
Canon EOS-1D C
  • $348
  • APS-C
  • Focus peaking
  • Touchscreen
  • $6989
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Samsung NX1100

Nikon D4S
Samsung NX1100
  • $6183
  • 35mm
  • Lens selection
  • Larger sensor
  • $500
  • APS-C
  • Less expensive
  • Built-in Wi-Fi
Sony A5100
Samsung NX1100
  • $348
  • APS-C
  • Lens selection
  • Focus peaking
  • $500
  • APS-C
  • Higher-res screen
  • Hot shoe

Compared to Sony A5000

Nikon D4S
Sony A5000
  • $6183
  • 35mm
  • Lens selection
  • Larger sensor
  • $448
  • APS-C
  • Less expensive
  • Focus peaking
Sony A5100
Sony A5000
  • $348
  • APS-C
  • Touchscreen
  • Higher effective ISO
  • $448
  • APS-C
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