Nikon has just filed a new patent of 1 Nikkor 9-30mm f/1.8-2.8 lens. This wide angle zoom lens will be available for Nikon 1 mirrorless cameras.
Patent Publication No. 2015-11191
- Published 2015.1.19
- Filing date 2013.6.28
Example 1
- Zoom ratio 3.14
- The focal length f = 9.3-19.1-29.1mm
- Fno. = 1.8-2.5-2.9
- Angle of view 2ω = 85.1-44.7-29.8 °
- Image height Y = 8.0mm
- Total length 95.9-101.1-114.1mm
- BF 13.8- 18.9- 18.4mm
- 4-group zoom of positive and negative, positive
- Inner focus
Source:EG