• APS-H 548.2mm2
  • 8.2 megapixels
  • ISO 100 - 1600
  • APS-H 525.5mm2
  • 10.1 megapixels
  • ISO 100 - 3200

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Differences

Canon 1D Mark II advantages over Canon 1D Mark III

  • Pentaprism viewfinder
    Pentaprism vs Pentamirror
    Much better viewfinder picture fidelity
  • More AF points
    45 vs 19
    More AF points improve autofocus
  • Bigger JPEG buffer
    33 vs 12 shots
    Take more JPEG shots before waiting (burst mode)

Canon 1D Mark III advantages over Canon 1D Mark II

  • Fast startup
    ~0.10 vs 1.0 sec
    Faster startup lets you catch the moment
  • More cross-type AF points
    19 vs 7
    Cross-type AF points improve autofocus performance
  • Lighter weight
    1155g vs 1555g
    Lighter weight
  • Less shutter lag
    0.09 vs 0.20 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    10.1 vs 8.2 megapixels
    Higher resolution photos
  • Faster JPEG shooting
    9.9 fps vs 8.1 fps
    Faster JPEG shooting (burst mode)
  • Higher extended ISO
    6400 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
  • 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
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • HDMI out
    Neither provide
    Use HDMI output to monitor or review video
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

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