• 35mm 861.6mm2
  • 24.5 megapixels
  • ISO 100 - 1600
  • 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 25,600

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Differences

Nikon D3X advantages over Sony A7R

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Bigger pixels
    ~ 5.94 vs 4.88 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.30 vs 2.0 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 4400 vs 340 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Less shutter lag
    0.16 vs 0.36 sec
    Focus and take a photo quickly (wide angle)
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Faster JPEG shooting
    5.0 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    31 vs 15 shots
    Take more JPEG shots before waiting (burst mode)

Sony A7R advantages over Nikon D3X

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • Higher effective ISO
    2,746 vs 1,992 iso
    Take photos in low light with less noise
  • Thinner
    48 mm vs 87 mm
    Thinner
  • Newer
    11 years vs 16 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Lighter weight
    465g vs 1392g
    Lighter weight
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    36.4 vs 24.5 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Higher extended ISO
    51200 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • 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

  • 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
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • 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
  • 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.

The Competition

Compared to Sony A7

Nikon D3X
Sony A7
  • $2500
  • 35mm
  • Lens selection
  • Fast startup
  • $748
  • 35mm
  • Focus peaking
  • In-camera panoramas
Sony A7R
Sony A7
  • $1399
  • 35mm
  • Higher effective ISO
  • More pixels
  • $748
  • 35mm
  • Less expensive
  • Bigger pixels

Compared to Canon 5D Mark II

Nikon D3X
Canon 5D Mark II
  • $2500
  • 35mm
  • Fast startup
  • More dynamic range
  • $1200
  • 35mm
  • Shoots 1080p video
  • Bigger JPEG buffer
Sony A7R
Canon 5D Mark II
  • $1399
  • 35mm
  • Focus peaking
  • Less expensive
  • $1200
  • 35mm
  • Lens selection
  • Bigger pixels

Compared to Nikon D3S

Nikon D3X
Nikon D3S
  • $2500
  • 35mm
  • More dynamic range
  • External Mic Jack
  • $5200
  • 35mm
  • Less expensive
  • Bigger pixels
Sony A7R
Nikon D3S
  • $1399
  • 35mm
  • Focus peaking
  • In-camera panoramas
  • $5200
  • 35mm
  • Lens selection
  • Bigger pixels

Compared to Nikon D4

Nikon D3X
Nikon D4
  • $2500
  • 35mm
  • Longer stills battery life
  • More pixels
  • $4500
  • 35mm
  • Bigger pixels
  • Higher effective ISO
Sony A7R
Nikon D4
  • $1399
  • 35mm
  • Less expensive
  • Focus peaking
  • $4500
  • 35mm
  • Lens selection
  • Bigger pixels

Compared to Sony A7R II

Nikon D3X
Sony A7R II
  • $2500
  • 35mm
  • Lens selection
  • Bigger pixels
  • $2348
  • 35mm
  • Focus peaking
  • In-Camera Image Stabilization
Sony A7R
Sony A7R II
  • $1399
  • 35mm
  • Less expensive
  • Lighter weight
  • $2348
  • 35mm
  • In-Camera Image Stabilization
  • Shoot 4K video
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