Canon Patent For EF-M 22-46mm f/3.5-5.6 Lens

Egami has discovered a new patent filed by Canon. The new patent describes a EF-M 22-46mm f/3.5-5.6 lens for mirrorless systems.

The EF-M mount lens in APS-C format would be give you 35-75mm f/3.5-5.6. Canon currently has a EF-M 22mm f/2 STM lens in their line up.

This patent also shows us that Canon is working on more lenses for EOS M mirrorless system. This also means they still have hope for the mirrorless camera system outside of Asia. Maybe to introduce a Canon EOS M3 for global markets.

Canon Patent For EF-M 22-46mm f/3.5-5.6 Lens


Patent Publication No. 2014-63025 (Google Translation)

  • Publication date 2014.4.10
  • Filing date 2012.9.21

Example 7

  • Zoom ratio 2.09
  • Focal length f = 22.10-34.22-45.19mm
  • Fno. 3.60-4.59-5.60
  • Half angle ω = 31.72-21.76-16.48 °
  • Image height 13.66mm
  • 65.76-62.07-64.72mm lens length
  • BF 28.16-36.88-45.09mm

via EG