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

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.