Egami has release a new Nikon lens patent: 55-300mm f/2.8-4 full frame lens.
Another new lens for Nikon DSLRs, see detail below:
- Patent number: 2012-212087
- Patent release date: November 1, 2012
- Patent filing date: March 31, 2011
- Zoom ratio: 5.17
- Focal length: 56.50 – 292.00mm
- Aperture: 2.88 – 4.12
- Angle of view: 8.35 – 23.13°
- Image height: 21.60mm
- Lens length: 248.90 – 288.60mm
- Back focus: 38.47 – 62.51mm
- Lens design: 22 elements in 17 groups with 5 ED elements
- VR
via: egami