Articles
Canon Files Patent for EF 28mm f/1.4L USM Lens
The-Digital-Picture_com
According to the Egami Blog, Canon has filed a design and optical formula patent for an EF 28mm f/1.4L USM.
Patent Details
Patent Publication No. 2016-31414
Patent Details
Patent Publication No. 2016-31414
- Published 2016.3.7
- Filing date 2014.7.28
- Focal length 28.00
- Fno 1.45
- Image height 21.64
- Overall length of the lens 125.07
- BF 38.73
