• APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • 35mm 858.0mm2
  • 45.7 megapixels
  • ISO 64 - 25,600

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Differences

Pentax K-3 II advantages over Nikon D850

  • Less expensive
    $797* vs $3097
    Save money for lenses or accessories
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Optional anti-aliasing filter
    Optional vs None
    Lets you choose sharper photos or reduced moiré
  • Faster JPEG shooting
    8.1 fps vs 7.1 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    8.2 fps vs 7.1 fps
    Faster RAW shooting in burst mode

Nikon D850 advantages over Pentax K-3 II

  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Fast startup
    ~0.20 vs 1.2 sec
    Faster startup lets you catch the moment
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Better color depth
    26.4 vs 23.6 bits
    Capture richer, more accurate colors
  • Higher effective ISO
    2,660 vs 1,106 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 1840 vs 720 shots
    Capture more photos
  • More cross-type AF points
    99 vs 25
    Cross-type AF points improve autofocus performance
  • Newer
    17 months vs 4 years old
    Newer cameras often support more advanced features
  • Higher-res screen
    590k vs 346k pixels
    More detail on the screen lets you judge focus and composition
  • More viewfinder magnification
    0.75x vs 0.63x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    45.7 vs 24.4 megapixels
    Higher resolution photos
  • More AF points
    153 vs 27
    More AF points improve autofocus
  • Bigger JPEG buffer
    200 vs 60 shots
    Take more JPEG shots before waiting (burst mode)
  • Bigger RAW buffer
    200 vs 22 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    102400 vs 51200 ISO
    Higher extended ISO can give more low-light flexibility

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
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • Pentaprism viewfinder
    Both provide
    Much better viewfinder picture fidelity
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Dual card slots
    Both provide
    Gives you more storage flexibility
  • Headphone jack
    Both provide
    Monitor audio recording while you shoot 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 panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • 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

User reviews

Buy From

Review Excerpt

  • Top-notch image quality; Spectacular detail from Pixel Shift Resolution; Better performance than K-3; Geotag images with no accessories; Great ergonomics in a compact body; Clever on-demand low-pass filtering; Broad sensitivity range; Large and bright viewfinder for an APS-C camera; Dual card slots

  • No built-in flash strobe; No wireless flash support out of the box; AstroTracer function can be finicky; AE Lock button is poorly located; Below-average battery life for a prosumer DSLR; Requires a different battery grip accessory than its predecessors

  • Class-leading resolution; Excellent dynamic range; Very good high ISO performance; Very fast AF and burst shooting; Durable weather-sealed body; Improved ergonomics; Touchscreen; Dual card slots; 4K video.

  • Live view/video mode still uses sluggish contrast-detect AF; Viewfinder only tests at ~98% coverage; No 4K at 60p; 30-minute video clip limit; Focus peaking not supported with 4K.

The Competition

Compared to Canon 5DS

Pentax K-3 II
Canon 5DS
  • $797
  • APS-C
  • Focus peaking
  • Less expensive
  • $3499
  • 35mm
  • Larger sensor
  • Fast startup
Nikon D850
Canon 5DS
  • $3097
  • 35mm
  • Focus peaking
  • Shoot 4K video
  • $3499
  • 35mm
  • Has anti-aliasing filter

Compared to Canon T6i

Pentax K-3 II
Canon T6i
  • $797
  • APS-C
  • Focus peaking
  • Larger sensor
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Nikon D850
Canon T6i
  • $3097
  • 35mm
  • Focus peaking
  • Larger sensor
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Sony A68

Pentax K-3 II
Sony A68
  • $797
  • APS-C
  • Lens selection
  • High resolution composite
  • $598
  • APS-C
  • In-camera panoramas
  • Tiltable Screen
Nikon D850
Sony A68
  • $3097
  • 35mm
  • Lens selection
  • Larger sensor
  • $598
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization

Compared to Sony A99 II

Pentax K-3 II
Sony A99 II
  • $797
  • APS-C
  • Lens selection
  • Less expensive
  • $3198
  • 35mm
  • Larger sensor
  • Tilt-swivel screen
Nikon D850
Sony A99 II
  • $3097
  • 35mm
  • Lens selection
  • Touchscreen
  • $3198
  • 35mm
  • Tilt-swivel screen
  • In-Camera Image Stabilization

Compared to Pentax KP

Pentax K-3 II
Pentax KP
  • $797
  • APS-C
  • Built-in GPS
  • Longer stills battery life
  • $797
  • APS-C
  • Tiltable Screen
  • Built-in Wi-Fi
Nikon D850
Pentax KP
  • $3097
  • 35mm
  • Larger sensor
  • Shoot 4K video
  • $797
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
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