A new patent from Canon now listed on Egami. This new lens patent is Canon EF 50mm f/1.8 IS USM lens. This lens could be the replacement of current 50mm f/1.4 lens. We had heard replacement of 50mm f/1.4 since last year. CR also said a new 50mm f/1.2L lens is in testing.
Patent Publication No. 2013-142782
- Publication date 2013.7.22
- Filing date 2012.1.11
Example 1
- Focal length f = 51.51mm
- Fno. 1.85
- Half angle ω = 22.78 °
- Image height 21.64mm
- The overall length of the lens 76.78mm
- BF 37.84mm
- 8 pieces of 7 lens configuration
via: EG