• APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 32,000
  • APS-C 361.2mm2
  • 25.7 megapixels
  • ISO 100 - 1,600,000

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Differences

Sony A6600 advantages over Pentax K-3 III

  • Less expensive
    $1798 vs $2344
    Save money for lenses or accessories
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • 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
  • Bigger JPEG buffer
    99 vs 30 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Pentax K-3 III advantages over Sony A6600

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • 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
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • Newer
    9 months vs 2 years old
    Newer cameras often support more advanced features
  • Higher-res screen
    540k vs 307k pixels
    More detail on the screen lets you judge focus and composition
  • More viewfinder magnification
    1.05x vs 0.70x
    Get a bigger view of the scene through the eye-level viewfinder
  • 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
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    1600000 vs 102400 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
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • 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
  • 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
  • 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
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash

User reviews

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Your purchases support this site

Buy the Pentax K-3 III

Review Excerpt

The Competition

Compared to Fujifilm X-T2

Sony A6600
Fujifilm X-T2
  • $1398
  • APS-C
  • In-Camera Image Stabilization
  • Touchscreen
  • $1100
  • APS-C
  • Less expensive
  • In-camera panoramas
Pentax K-3 III
Fujifilm X-T2
  • $1997
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $1100
  • APS-C
  • Less expensive
  • In-camera panoramas

Compared to Fujifilm X-T20

Sony A6600
Fujifilm X-T20
  • $1398
  • APS-C
  • In-Camera Image Stabilization
  • NFC
  • $699
  • APS-C
  • Less expensive
  • In-camera panoramas
Pentax K-3 III
Fujifilm X-T20
  • $1997
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $699
  • APS-C
  • Less expensive
  • In-camera panoramas

Compared to Pentax KP

Sony A6600
Pentax KP
  • $1398
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $999
  • APS-C
  • Lens selection
  • Less expensive
Pentax K-3 III
Pentax KP
  • $1997
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $999
  • APS-C
  • Less expensive
  • Tiltable Screen

Compared to Fujifilm X-T3

Sony A6600
Fujifilm X-T3
  • $1398
  • APS-C
  • In-Camera Image Stabilization
  • NFC
  • $1099
  • APS-C
  • Less expensive
  • In-camera panoramas
Pentax K-3 III
Fujifilm X-T3
  • $1997
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $1099
  • APS-C
  • Less expensive
  • In-camera panoramas

Compared to Canon 90D

Sony A6600
Canon 90D
  • $1398
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1399
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Pentax K-3 III
Canon 90D
  • $1997
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1399
  • APS-C
  • Less expensive
  • Tilt-swivel screen
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