The upcoming Canon EF 35mm f/1.4L II USM lens is expected to be the next new L lens after Canon EF 11-24mm f/4L USM and it is rumored to be announced in late Summer 2015.
The filed patent appears to refer to the successor of the Canon EF 35mm f 1.4L USM which is released in back 1998 and currently priced for $1,479 at Amazon.
Canon EF 35mm f/1.4L USM II Lens Patent
Explanation and self-interpretation of the patent literature
- Patent Publication No. 2015-72370
- Published 2015.4.16
- Filing date 2013.10.3
- Example 1
- Focal length f = 35.47mm
- Fno. 1.45
- Half angle of view ω = 31.38 °
- Image height Y = 21.64mm
- Lens length 141.37mm
- BF 39.37mm
- Positive, positive ShiboTadashi