• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 204,800
  • APS-C 369.0mm2
  • 24.2 megapixels
  • ISO 200 - 12,800

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Differences

Pentax K-1 advantages over Fujifilm X-A5

  • 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.
  • Less expensive
    $195* vs $499
    Save money for lenses or accessories
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • 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
  • Fast startup
    ~1.20 vs 3.1 sec
    Faster startup lets you catch the moment
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Longer stills battery life
    More info 760 vs 450 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • Less shutter lag
    0.09 vs 0.33 sec
    Focus and take a photo quickly (wide angle)
  • 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
  • Bigger JPEG buffer
    74 vs 22 shots
    Take more JPEG shots before waiting (burst mode)
  • Bigger RAW buffer
    17 vs 6 shots
    Larger buffer for RAW shots (burst mode)
  • Higher extended ISO
    204800 vs 51200 ISO
    Higher extended ISO can give more low-light flexibility

Fujifilm X-A5 advantages over Pentax K-1

  • 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
  • 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
    40 mm vs 85 mm
    Thinner
  • Newer
    13 months vs 3 years old
    Newer cameras often support more advanced features
  • Faster JPEG shooting
    5.8 fps vs 4.6 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    5.7 fps vs 4.6 fps
    Faster RAW shooting in burst mode
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/32000 vs 1/8000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • 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
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones

User reviews

Buy From

Your purchases support this site

Buy the Fujifilm X-A5

Review Excerpt

  • Unlocks the full potential of full-frame Pentax lenses; Excellent image quality; Great ergonomics and build; Very compact for full-frame; Decent performance; Fast autofocus with great low-light capabilities; Very wide sensitivity range; Bright, accurate viewfinder; Articulated LCD; Stabilization, Wi-Fi and GPS in-camera

  • No built-in flash strobe; Quite heavy compared to APS-C flagships; Somewhat soft images and blown highlights by default in JPEG mode; Warm Auto white balance indoors; Slow startup and buffer clearing; Small top-deck status display; Weak viewfinder illumination; Below-average battery life for DSLR

  • Impressive overall image quality; Excellent high ISO performance; Very good dynamic range from RAW files; Full HD video at 60 fps; Good battery life.

  • Slower-than-average AF speed; 4K video capped at 15fps; Very slow startup to first shot time with new power-zoom kit lens; Sluggish single-shot cycle times.

The Competition

Compared to Nikon D810

Pentax K-1
Nikon D810
  • $1264
  • 35mm
  • Less expensive
  • Focus peaking
  • $2797
  • 35mm
  • Fast startup
  • Longer stills battery life
Fujifilm X-A5
Nikon D810
  • $499
  • APS-C
  • Less expensive
  • Focus peaking
  • $2797
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Canon 5D Mark IV

Pentax K-1
Canon 5D Mark IV
  • $1264
  • 35mm
  • Less expensive
  • Focus peaking
  • $2999
  • 35mm
  • Shoot 4K video
  • Touchscreen
Fujifilm X-A5
Canon 5D Mark IV
  • $499
  • APS-C
  • Less expensive
  • Focus peaking
  • $2999
  • 35mm
  • Lens selection
  • Larger sensor

Compared to Fujifilm X-A3

Pentax K-1
Fujifilm X-A3
  • $1264
  • 35mm
  • Lens selection
  • Larger sensor
  • $499
  • APS-C
  • Touchscreen
  • In-camera panoramas
Fujifilm X-A5
Fujifilm X-A3
  • $499
  • APS-C
  • Shoot 4K video
  • Built-in Bluetooth
  • $499
  • APS-C
  • Fast startup

Compared to Canon EOS M6

Pentax K-1
Canon EOS M6
  • $1264
  • 35mm
  • Lens selection
  • Larger sensor
  • $579
  • APS-C
  • Touchscreen
  • NFC
Fujifilm X-A5
Canon EOS M6
  • $499
  • APS-C
  • Lens selection
  • Larger sensor
  • $579
  • APS-C
  • Fast startup
  • NFC

Compared to Pentax K-1 II

Pentax K-1
Pentax K-1 II
  • $1264
  • 35mm
  • Less expensive
  • $1797
  • 35mm
  • Newer
  • Higher extended ISO
Fujifilm X-A5
Pentax K-1 II
  • $499
  • APS-C
  • Less expensive
  • Shoot 4K video
  • $1797
  • 35mm
  • Lens selection
  • Larger sensor
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