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Canon Patent for EF-S 9-18mm f/4.5-5.6 Lens

2014_225002_fig05

Egami (translated) spotted a patent filed by Canon for a 9-18mm f/4.5-5.6 IS STM lens for APS-C cameras. The lens design looks similar to the recently announced EF-S 10-18mm f/4.5-5.6 IS STM.

  • Patent Publication No. 2014-225002
    • Published 2014.12.4
    • Filing date 2013.4.25
  • Canon patent
    • 4-group configuration of negative positive and negative positive
    • Inner focus
    • And a plastic aspherical first lens group
    • [0013] According to the present invention, the change in imaging magnification upon focusing on less, high speed focusing is obtained zoom lens easy wide angle.
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