• APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • APS-C 361.2mm2
  • 25.7 megapixels
  • ISO 100 - 160,000

Buy From

Differences

Pentax K-3 II advantages over Pentax K-3 III

  • Bigger JPEG buffer
    60 vs 30 shots
    Take more JPEG shots before waiting (burst mode)

Pentax K-3 III advantages over Pentax K-3 II

  • 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
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Newer
    Brand new vs 6 years old
    Newer cameras often support more advanced features
  • Higher-res screen
    540k vs 346k pixels
    More detail on the screen lets you judge focus and composition
  • More viewfinder magnification
    1.05x vs 0.63x
    Get a bigger view of the scene through the eye-level viewfinder
  • More AF points
    101 vs 27
    More AF points improve autofocus
  • Faster JPEG shooting
    12.0 fps vs 8.1 fps
    Faster JPEG shooting (burst mode)
  • Higher extended ISO
    160000 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
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Built-in GPS
    Both provide
    Geotag your photos
  • 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
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

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

The Competition

Compared to Canon T6i

Pentax K-3 II
Canon T6i
  • $830
  • APS-C
  • Focus peaking
  • Larger sensor
  • $592
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Pentax K-3 III
Canon T6i
  • $2000
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $592
  • APS-C
  • Tilt-swivel screen
  • NFC

Compared to Sony A68

Pentax K-3 II
Sony A68
  • $830
  • APS-C
  • Lens selection
  • High resolution composite
  • $598
  • APS-C
  • Less expensive
  • In-camera panoramas
Pentax K-3 III
Sony A68
  • $2000
  • APS-C
  • Lens selection
  • Shoot 4K video
  • $598
  • APS-C
  • In-camera panoramas
  • Tiltable Screen

Compared to Pentax KP

Pentax K-3 II
Pentax KP
  • $830
  • APS-C
  • Less expensive
  • Built-in GPS
  • $999
  • APS-C
  • Tiltable Screen
  • Built-in Wi-Fi
Pentax K-3 III
Pentax KP
  • $2000
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $999
  • APS-C
  • Tiltable Screen
  • Internal flash

Compared to Canon SL3

Pentax K-3 II
Canon SL3
  • $830
  • APS-C
  • Focus peaking
  • Larger sensor
  • $599
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Pentax K-3 III
Canon SL3
  • $2000
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $599
  • APS-C
  • Tilt-swivel screen
  • On-sensor phase detect

Compared to Canon 90D

Pentax K-3 II
Canon 90D
  • $830
  • APS-C
  • Less expensive
  • Focus peaking
  • $1199
  • APS-C
  • Tilt-swivel screen
  • Shoot 4K video
Pentax K-3 III
Canon 90D
  • $2000
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1199
  • APS-C
  • Tilt-swivel screen
  • On-sensor phase detect
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