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Sunday, April 13, 2014

New Canon EOS-M Patent - 22-46mm f/3.5-5.6

Canon EOS-M line of cameras

Egami, the Japanese photography blog, has discovered a new Canon patent that may be for the EF-M mount. In APS-C sensor, this design would be for a 35-75mm f/3.5-5.6 lens.

In the past, Canon has mentioned more lenses will be available for the EOS-M camera. This means they still have hope for the mirrorless camera system outside of Asia and the EOS-M2 could still come to North America and Europe eventually.

Patent Publication No. 2014-63025

  • 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 ? = 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

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