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Canon Patent 55-200mm EF-S Lens

Canon new 55-200mm lens patent imgCanon is finally preparing to replace the most popluar 55-200mm EF-S Lens, a new patent surfaced over the web that shows EF-S 55-200mm STM lens. No further details are available, take a look details translated by google

Description, self-interpretation of the patent literature

  • Patent Publication No. 2015-197655
    • Published 2015.11.9
    • Filing date 2014.4.3
  • Example 1
    • Zoom ratio 3.68
    • Focal length 54.36 133.00 199.99
    • F-number 4.14 5.22 6.32
    • Half angle of 14.11 5.86 3.91
    • Image height 13.66
    • Overall length of the lens 129.39 161.77 167.04
    • BF 46.78 66.90 78.18

See more patents here

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