• 35mm 864.0mm2
  • 21.1 megapixels
  • ISO 100 - 1600
  • 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 204,800

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Differences

Canon 1Ds Mark III advantages over Pentax K-1

  • Bigger pixels
    ~ 6.41 vs 4.88 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.50 vs 1.2 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 1800 vs 760 shots
    Capture more photos
  • More AF points
    45 vs 33
    More AF points improve autofocus

Pentax K-1 advantages over Canon 1Ds Mark III

  • 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
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Higher effective ISO
    3,280 vs 1,663 iso
    Take photos in low light with less noise
  • More dynamic range
    14.6 vs 12.0 evs
    Retain detail in highlight and shadows
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    25 vs 19
    Cross-type AF points improve autofocus performance
  • Newer
    2 years vs 11 years old
    Newer cameras often support more advanced features
  • HDMI out
    HDMI out vs None
    Use an external screen to monitor or review video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Lighter weight
    1015g vs 1425g
    Lighter weight
  • More dots on screen
    1037k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    36.4 vs 21.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • 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 8 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    204800 vs 3200 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
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • Pentaprism viewfinder
    Both provide
    Much better viewfinder picture fidelity
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Dual card slots
    Both provide
    Gives you more storage flexibility
  • 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
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

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

The Competition

Compared to Nikon D810

Canon 1Ds Mark III
Nikon D810
  • $7999
  • 35mm
  • Bigger pixels
  • Longer stills battery life
  • $2797
  • 35mm
  • Higher effective ISO
  • More dynamic range
Pentax K-1
Nikon D810
  • $1764
  • 35mm
  • Less expensive
  • Focus peaking
  • $2797
  • 35mm
  • Fast startup
  • Longer stills battery life

Compared to Canon 5D Mark IV

Canon 1Ds Mark III
Canon 5D Mark IV
  • $7999
  • 35mm
  • Bigger pixels
  • Longer stills battery life
  • $3582
  • 35mm
  • Shoot 4K video
  • Touchscreen
Pentax K-1
Canon 5D Mark IV
  • $1764
  • 35mm
  • Less expensive
  • Focus peaking
  • $3582
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compared to Sony A99 II

Canon 1Ds Mark III
Sony A99 II
  • $7999
  • 35mm
  • Lens selection
  • Bigger pixels
  • $3198
  • 35mm
  • Focus peaking
  • Tilt-swivel screen
Pentax K-1
Sony A99 II
  • $1764
  • 35mm
  • Lens selection
  • Less expensive
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Shoot 4K video

Compared to Nikon D850

Canon 1Ds Mark III
Nikon D850
  • $7999
  • 35mm
  • Bigger pixels
  • Has anti-aliasing filter
  • $3297
  • 35mm
  • Focus peaking
  • Shoot 4K video
Pentax K-1
Nikon D850
  • $1764
  • 35mm
  • Less expensive
  • In-Camera Image Stabilization
  • $3297
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compared to Pentax K-1 II

Canon 1Ds Mark III
Pentax K-1 II
  • $7999
  • 35mm
  • Bigger pixels
  • Fast startup
  • $1897
  • 35mm
  • Focus peaking
  • In-Camera Image Stabilization
Pentax K-1
Pentax K-1 II
  • $1764
  • 35mm
  • Less expensive
  • $1897
  • 35mm
  • Newer
  • Higher extended ISO
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