• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 819,200
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 32,000

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Differences

Pentax K-1 II advantages over Sony A6100

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 4.88 vs 3.92 microns
    Better low-light and dynamic range (all else equal)
  • 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
  • Longer stills battery life
    More info 670 vs 420 shots
    Capture more photos
  • More telephoto lens reach
    105 mm vs 75 mm
    Capture objects farther away with the kit lens
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More pixels
    36.4 vs 24.2 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • 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 shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    819200 vs 51200 ISO
    Higher extended ISO can give more low-light flexibility

Sony A6100 advantages over Pentax K-1 II

  • Less expensive
    $848 vs $2197
    Save money for lenses or accessories
  • 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
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • 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
  • Thinner
    59 mm vs 85 mm
    Thinner
  • Newer
    8 months vs 2 years old
    Newer cameras often support more advanced features
  • Wider angle kit lens
    24 mm vs 28 mm
    Capture more of the scene with the included lens
  • Faster JPEG shooting
    11.0 fps vs 4.5 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    11.0 fps vs 4.6 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    33 vs 17 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

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
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility

User reviews

Buy From

Your purchases support this site

Buy the Sony A6100

Review Excerpt

  • Excellent build and comfortable handling; Bright, roomy viewfinder and articulated LCD; Great image quality; Good performance for the class; In-camera stabilization, GPS and Wi-Fi; Incredibly feature-rich design.

  • Bulkier than APS-C DSLRs; Top ISOs are for the spec sheet, not the real world; JPEGs are a bit punchy by default; Slow startup; Below-average battery life; Only a relatively modest update to the K-1.

The Competition

Compared to Pentax K-1

Pentax K-1 II
Pentax K-1
  • $1797
  • 35mm
  • Newer
  • Higher extended ISO
  • $1800
  • 35mm
Sony A6100
Pentax K-1
  • $748
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $1800
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Canon 5D Mark IV

Pentax K-1 II
Canon 5D Mark IV
  • $1797
  • 35mm
  • Less expensive
  • Focus peaking
  • $2499
  • 35mm
  • Shoot 4K video
  • Touchscreen
Sony A6100
Canon 5D Mark IV
  • $748
  • APS-C
  • Focus peaking
  • Less expensive
  • $2499
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Nikon D850

Pentax K-1 II
Nikon D850
  • $1797
  • 35mm
  • Less expensive
  • In-Camera Image Stabilization
  • $2997
  • 35mm
  • Shoot 4K video
  • Touchscreen
Sony A6100
Nikon D850
  • $748
  • APS-C
  • Less expensive
  • In-camera panoramas
  • $2997
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Fujifilm X-T100

Pentax K-1 II
Fujifilm X-T100
  • $1797
  • 35mm
  • Lens selection
  • Larger sensor
  • $499
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Sony A6100
Fujifilm X-T100
  • $748
  • APS-C
  • Slower slow-motion
  • NFC
  • $499
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Sony A6400

Pentax K-1 II
Sony A6400
  • $1797
  • 35mm
  • Lens selection
  • Larger sensor
  • $898
  • APS-C
  • Less expensive
  • Shoot 4K video
Sony A6100
Sony A6400
  • $748
  • APS-C
  • Less expensive
  • $898
  • APS-C
  • Higher extended ISO
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