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Firmware Update

Canon 9-18mm Lens Patent for APS-C Mirrorless Camera

Canon mirrorless lens patent

Latest patent surfaced over the web is of a Ultra Wide-angle zoom lens for APS-C Mirrorless camera. The Lens features focal-length 9-18mm,  a very important range that a professional Landscape and architecture photographer always uses.

The other most important part of the patent is Canon optimized the super wide-angle zoom lens for less correction of the distortion, we will put more details as soon as it become available

Patent details translated by google

  • Patent Publication No. 2016-54371
    • Published 2016.4.14
    • Filing date 2014.9.3
  • Example
    • Zoom ratio 1.90
    • Wide-angle intermediate telephoto
    • Focal length 9.22 14.05 17.50
    • F-number 3.39 4.04 4.63
    • Half angle of view (degrees) 53.07 44.12 37.91
    • Image height 12.27 13.63 13.63
    • Overall length of the lens 89.68 83.60 86.84
    • BF 14.22 15.78 16.00
  • Canon patent
    • Upon correction of the distortion, providing a constraint on stretching amount at each image height
    • Properly set the curve shape of the distortion aberration

Do contribute us if you have a better translation, more patents are available here.

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