• Medium format 1,452.0mm2
  • 40.0 megapixels
  • ISO 200 - 1000
  • 35mm 864.0mm2
  • 18.1 megapixels
  • ISO 100 - 51,200

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Differences

Pentax 645D advantages over Canon EOS-1D C

  • Less expensive
    $9996 vs $15000 (MSRP)
    Save money for lenses or accessories
  • Larger sensor
    Medium format vs 35mm
    More sensor area. Bigger is (generally) better.
  • More pixels
    40.0 vs 18.1 megapixels
    Higher resolution photos
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos

Canon EOS-1D C advantages over Pentax 645D

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Shoot 4K video
    4K (DCI) vs No
    Make sure you have a fast computer
  • Thinner
    82 mm vs 119 mm
    Thinner
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    41 vs 11
    Cross-type AF points improve autofocus performance
  • Higher max flash sync
    1/250 vs 1/125 sec
    Reduce the effect of ambient light in flash shots
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • More AF points
    61 vs 11
    More AF points improve autofocus
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Faster JPEG shooting
    12.0 fps vs 1.1 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    204800 vs 1600 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
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • 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

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • 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

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Buy the Pentax 645D
Pentax 645D
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Your purchases support this site

Buy the Canon EOS-1D C
Body Only

Review Excerpt

  • Very high-resolution 40-megapixel sensor; Plentiful controls with great placement; Excellent optical viewfinder; Dual SDHC card slots; Infrared remote sensors front and back.

  • High price tag; Aliasing artifacts; Produces ~70MB RAW files.

  • Read our Pentax 645D Review

The Competition

Compared to Leica S2

Pentax 645D
Leica S2
  • $3599
  • Medium format
  • Less expensive
  • More cross-type AF points
  • $22995
  • Medium format
  • Thinner
  • More viewfinder magnification

Compare Pentax 645D vs Leica S2

Canon EOS-1D C
Leica S2
  • $6989
  • 35mm
  • Lens selection
  • Less expensive
  • $22995
  • Medium format
  • Larger sensor
  • More viewfinder magnification

Compare Canon EOS-1D C vs Leica S2

Compared to Canon 1DX

Pentax 645D
Canon 1DX
  • $3599
  • Medium format
  • Larger sensor
  • More pixels
  • $5299
  • 35mm
  • Lens selection
  • Less expensive

Compare Pentax 645D vs Canon 1DX

Canon EOS-1D C
Canon 1DX
  • $6989
  • 35mm
  • Shoot 4K video
  • Headphone jack
  • $5299
  • 35mm
  • Less expensive

Compare Canon EOS-1D C vs Canon 1DX

Compared to Leica S (Typ 006)

Pentax 645D
Leica S (Typ 006)
  • $3599
  • Medium format
  • Less expensive
  • Higher effective ISO
  • $10535
  • Medium format
  • Thinner
  • More viewfinder magnification

Compare Pentax 645D vs Leica S (Typ 006)

Canon EOS-1D C
Leica S (Typ 006)
  • $6989
  • 35mm
  • Lens selection
  • Less expensive
  • $10535
  • Medium format
  • Larger sensor
  • More viewfinder magnification

Compare Canon EOS-1D C vs Leica S (Typ 006)

Compared to Nikon D4S

Pentax 645D
Nikon D4S
  • $3599
  • Medium format
  • Larger sensor
  • More viewfinder magnification
  • $5399
  • 35mm
  • Lens selection
  • Bigger pixels

Compare Pentax 645D vs Nikon D4S

Canon EOS-1D C
Nikon D4S
  • $6989
  • 35mm
  • Shoot 4K video
  • More cross-type AF points
  • $5399
  • 35mm
  • Higher extended ISO

Compare Canon EOS-1D C vs Nikon D4S

Compared to Pentax 645Z

Pentax 645D
Pentax 645Z
  • $3599
  • Medium format
  • Fast startup
  • Longer stills battery life
  • $4845
  • Medium format
  • Focus peaking
  • Tiltable Screen

Compare Pentax 645D vs Pentax 645Z

Canon EOS-1D C
Pentax 645Z
  • $6989
  • 35mm
  • Lens selection
  • Bigger pixels
  • $4845
  • Medium format
  • Focus peaking
  • Larger sensor

Compare Canon EOS-1D C vs Pentax 645Z

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