We've been told that Canon's next L lens would be a prime. Most of the people I've talked to think that the EF 35mm f/1.4L will be the lens getting the update. There have been a lot of patents in the past for the optical formula, and recently a new one has appeared.
Patent Publication No. 2015-72370 (Google Translated)
- 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
We expect to see a new L lens some time in late summer or early fall and all the signs continue to point to a new 35L.
Source: [Egami]