Here is a new Canon patent application, as usual for RF-mount lenses. Canon patent application…
Canon EF 10mm f/2.8L USM patent (not fish-eye)
Canon filed a patent for an EF 10mm f/2.8L USM lens. The interesting fact: this is not a fish-eye lens!
- Patent Publication No. 2015-102620
- Published 2015.6.4
- Filing date 2013.11.22
- Example 3
- Focal length f = 10.30mm
- Fno. 2.88
- Half angle of view ω = 64.54 °
- Image height 21.64mm
- Lens length 124.58mm
- BF 38.00mm