New Patent: Canon EF-M 55-300mm f/4.5-6.3 DO IS STM Lens

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Canon has filed a new patent for the EF-M 55-300mm f/4.5-6.3 DO IS STM lens, which is designed for the APS-C mirrorless cameras.

Take a look at the patent details below translated by Google.

Patent Publication No. 2015-232674

  • Published 2015.12.24
  • Filing date 2014.6.11

Example 1

  • Zoom ratio 5.27
  • Focal length 55.04 135.00 290.01
  • F-number 4.60 5.18 6.30
  • Angle of view 13.94 5.78 2.70
  • Image height 13.66 13.66 13.66
  • Overall length of the lens 136.00 175.46 192.00
  • BF 35.50 35.50 35.50

See more Canon Patent.

via: Egami

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