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Canon patent for 24-300mm f/4-5.6 lens

canon patent

Canon filed a patent for a 24-300mm f/4-5.6 lens.

  • Patent Publication No. 2015-200870
    • Published 2015.11.12
    • Filing date 2014.3.31
  • Example 1
    • Zoom ratio 12.14
    • Focal length 24.30 99.98 294.95
    • F-number 4.10 5.76 5.88
    • Half angle (in degrees) 41.68 12.21 4.20
    • Image height 21.64
    • Overall length of the lens 197.38 245.98 298.53
    • BF 38.90 91.95 92.55
[via Egami]
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