• APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • APS-C 337.5mm2
  • 24.2 megapixels
  • ISO 100 - 16,000

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Differences

Pentax K-3 advantages over Canon 80D

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Canon 80D advantages over Pentax K-3

  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Fast startup
    ~0.50 vs 0.9 sec
    Faster startup lets you catch the moment
  • 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
  • Longer stills battery life
    More info 960 vs 560 shots
    Capture more photos
  • More cross-type AF points
    45 vs 25
    Cross-type AF points improve autofocus performance
  • More AF points
    45 vs 27
    More AF points improve autofocus

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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
  • 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

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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

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Buy the Pentax K-3
Body Only
  • Body Only
  • Kit with 18-135mm Lens
All K-3 Deals

Your purchases support this site

Buy the Canon 80D
Body Only
  • Body Only
  • Kit with 18-135mm Lens
  • Kit with 18-55mm Lens
All 80D Deals

Review Excerpt

  • Top-notch image quality; Great ergonomics in a compact body; Unique on-demand low-pass filtering; Broad sensitivity range; Large and bright viewfinder for an APS-C camera; Dual card slots; Optional Wi-Fi remote control

  • AE Lock button is poorly located; Below-average battery life for a DSLR; Rather dated-looking menu system; Requires a different battery grip accessory than its predecessors; Less third-party support than some rivals

  • Read our Pentax K-3 Review

  • Very good image quality; Better RAW high ISO performance than predecessor; Improved buffer depth; Very fast AF; Dual Pixel CMOS AF is excellent; f/8 AF support; 1080/60p video; Headphone jack; Very good battery life.

  • New kit lens isn't very sharp; No 4K video; No clean HDMI out; 29:59 minute video recording limit; Phase detect AF not as sensitive in low-light as expected (Dual Pixel AF is better in low-light).

  • Read our Canon 80D Review

The Competition

Compared to Nikon D7100

Pentax K-3
Nikon D7100
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $690
  • APS-C
  • Fast startup
  • Longer stills battery life

Compare Pentax K-3 vs Nikon D7100

Canon 80D
Nikon D7100
  • $935
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $690
  • APS-C
  • Fast startup
  • Higher effective ISO

Compare Canon 80D vs Nikon D7100

Compared to Nikon D5300

Pentax K-3
Nikon D5300
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Tilt-swivel screen
  • Fast startup

Compare Pentax K-3 vs Nikon D5300

Canon 80D
Nikon D5300
  • $935
  • APS-C
  • Touchscreen
  • NFC
  • $549
  • APS-C
  • Less expensive
  • Higher effective ISO

Compare Canon 80D vs Nikon D5300

Compared to Sony A77 II

Pentax K-3
Sony A77 II
  • $699
  • APS-C
  • Lens selection
  • More telephoto lens reach
  • $1198
  • APS-C
  • Tilt-swivel screen
  • In-camera panoramas

Compare Pentax K-3 vs Sony A77 II

Canon 80D
Sony A77 II
  • $935
  • APS-C
  • Lens selection
  • Less expensive
  • $1198
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization

Compare Canon 80D vs Sony A77 II

Compared to Nikon D7200

Pentax K-3
Nikon D7200
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1016
  • APS-C
  • Fast startup
  • Built-in Wi-Fi

Compare Pentax K-3 vs Nikon D7200

Canon 80D
Nikon D7200
  • $935
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $1016
  • APS-C
  • Higher effective ISO
  • More dynamic range

Compare Canon 80D vs Nikon D7200

Compared to Nikon D7500

Pentax K-3
Nikon D7500
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $947
  • APS-C
  • Shoot 4K video
  • Touchscreen

Compare Pentax K-3 vs Nikon D7500

Canon 80D
Nikon D7500
  • $935
  • APS-C
  • Tilt-swivel screen
  • NFC
  • $947
  • APS-C
  • Shoot 4K video
  • Fast startup

Compare Canon 80D vs Nikon D7500

Compare Other Cameras?