Canon has filed a new patent for Canon EF 11mm f/4L USM Lens, which is designed for Canon full frame DSLR cameras and it will have high quality optical features.
Take a look at the patent details below translated by Google.
Patent Publication No. 2016-81005
- Published 2016.5.16
- Filing date 2014.10.22
- Focal length 11.33 11.47
- F-number 4.11 4.12
- Half angle of 62.36 62.08
- Image height 21.64 21.64
- Overall length of the lens 109.13 109.12
- BF 38.90 38.40
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