Nikon Latest patent surfaced over the web for 58mm F1.4 Lens
Patent Details
- Patent Publication No. 2013-19993
- 2013.1.31 Release Date
- 2011.7.8 filing date
- JP 2013-19992 2013-19994 58mm F1.2, 58mm F1.4 and JP 2013-19993
- Example 1
- Focal length f = 58.0216mm
- Fno. 1.450
- Half angle of view ω = 20.82 °
- Image height 21.6mm
- Length 93.67772mm
- BF 38.71868mm
- Nine elements in 5 groups lens configuration
- Two two-sided aspherical
- Negative positive negative
- Fed whole
