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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