• APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 25,600
  • APS-C 361.2mm2
  • 25.7 megapixels
  • ISO 100 - 1,600,000

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Differences

Canon 77D advantages over Pentax K-3 III

  • Less expensive
    $799 vs $2344
    Save money for lenses or accessories
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • 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
  • More cross-type AF points
    45 vs 25
    Cross-type AF points improve autofocus performance
  • Bigger JPEG buffer
    167 vs 30 shots
    Take more JPEG shots before waiting (burst mode)

Pentax K-3 III advantages over Canon 77D

  • 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
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Longer stills battery life
    More info 800 vs 600 shots
    Capture more photos
  • Pentaprism viewfinder
    Pentaprism vs Pentamirror
    Much better viewfinder picture fidelity
  • Newer
    3 years vs 7 years old
    Newer cameras often support more advanced features
  • Higher-res screen
    540k vs 347k pixels
    More detail on the screen lets you judge focus and composition
  • More viewfinder magnification
    1.05x vs 0.51x
    Get a bigger view of the scene through the eye-level viewfinder
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • More AF points
    101 vs 45
    More AF points improve autofocus
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Faster JPEG shooting
    12.0 fps vs 6.0 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    1600000 vs 51200 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
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • 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
  • 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

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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 Canon 77D
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  • Body Only
  • Kit with 18-135mm lens
  • Kit with 18-55mm lens
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Buy the Pentax K-3 III
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  • Body Only
  • Kit with 20-40mm F2.8-4 Lens
  • Kit with 55-300mm f/4.5-6.3 Lens
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Review Excerpt

  • Very good image quality; Improved dynamic range at low ISOs; Very fast autofocus; Dual Pixel CMOS AF in Live View; Much improved RAW buffer depth; 1080/60p video; Quick Control Dial & top-panel LCD screen.

  • Default JPEGs slightly soft straight out of camera; Dynamic range & high ISOs lag behind competing cameras; No 4K video resolution.

  • Read our Canon 77D Review

The Competition

Compared to Canon T6s

Canon 77D
Canon T6s
  • $550
  • APS-C
  • Fast startup
  • Built-in Bluetooth
  • $619
  • APS-C
  • Bigger JPEG buffer

Compare Canon 77D vs Canon T6s

Pentax K-3 III
Canon T6s
  • $1847
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $619
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compare Pentax K-3 III vs Canon T6s

Compared to Sony A68

Canon 77D
Sony A68
  • $550
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $598
  • APS-C
  • Less expensive
  • Focus peaking

Compare Canon 77D vs Sony A68

Pentax K-3 III
Sony A68
  • $1847
  • APS-C
  • Lens selection
  • Shoot 4K video
  • $598
  • APS-C
  • Less expensive
  • In-camera panoramas

Compare Pentax K-3 III vs Sony A68

Compared to Pentax K-70

Canon 77D
Pentax K-70
  • $550
  • APS-C
  • Touchscreen
  • Fast startup
  • $597
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Canon 77D vs Pentax K-70

Pentax K-3 III
Pentax K-70
  • $1847
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $597
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compare Pentax K-3 III vs Pentax K-70

Compared to Pentax KP

Canon 77D
Pentax KP
  • $550
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $999
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Canon 77D vs Pentax KP

Pentax K-3 III
Pentax KP
  • $1847
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $999
  • APS-C
  • Less expensive
  • Tiltable Screen

Compare Pentax K-3 III vs Pentax KP

Compared to Canon 90D

Canon 77D
Canon 90D
  • $550
  • APS-C
  • Less expensive
  • NFC
  • $1199
  • APS-C
  • Shoot 4K video
  • Longer stills battery life

Compare Canon 77D vs Canon 90D

Pentax K-3 III
Canon 90D
  • $1847
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1199
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compare Pentax K-3 III vs Canon 90D

Compare Other Cameras?