Canon Patents EF-M 9-17mm f/3.5-5 STM

According to the Egami Blog, Canon has patented an EF-M 9-17mm f/3.5-5 STM optical design.

Patent Description

  • Patent Publication No. 2016-85259
  • Published 2016.5.19
  • Submission Date 2014.10.23
  • Zoom ratio 1.79
  • Focus distance 9.27 13.32 16.58
  • F-number 3.60 4.38 5.11
  • AOV 51.83 45.17 38.94
  • Overall length of the lens 85.22 79.65 81.94
  • BF 14.99 16.82 15.41

Posted: 5/23/2016 5:17:23 AM CT   Posted By: Sean
Posted to: Canon News    Category: Camera and Lens Patents
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