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Canon patent for 9-20mm f/4.5-5.6 image-stabilised lens for APS-C DSLRs

canon patent

Canon patent for a new lens, an ultra-wide angle and image-stabilised 9-20mm f/4.5-5.6 lens. The described optical formula refers to an APS-C sensor.

  • Patent Publication No. 2015-31869
    • Published 2015.2.16
    • Filing date 2013.8.5
  • Example
    • Zoom ratio 2.07
    • Focal length 9.50 14.52 19.70
    • F-number 4.64 5.21 5.80
    • Half angle (in degrees) 55.17 43.26 34.74
    • Image height 13.66
    • Overall length of the lens 143.95 134.71 134.11
    • BF 38.00 47.58 56.42
[via Egami]

 

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