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Nikon FX Lens Roadmap and new patent details published by egami , The FX Lens Roadmap is based on Nikon FX Lens patents.

Nikon FX Lens Roadmap

Nikon 70-200mm F4 telephoto zoom lens patent

Patent literature, interpretation and self-summary (translated by google)

• Patent Publication No. 2011-197302
  • 2011.10.6 Release Date
  • Filing date 2010.3.18
• Example 1
  • Focal length f = 71.40 – 107.00 – 195.99mm
  • Fno = 4.1
  • Half angle of 17.107 – 11.288 – 6.107 °
  • Image height 21.60mm
  • Optical Length 214.6 – 214.5 – 214.8mm
  • Back Focus 51.9 – 51.8 – 52.1mm
  • Maximum magnification β =- 0.07 – -0.09 – -0.14 times
  • 20 sheets of 15 groups
  • Zoom ratio 2.745
• Positive positive positive and negative elements in 5 groups Zoom
• Inner Focus
• Inner Zoom
• Image stabilization (VR) with

Nikon 800mm F5.6 telephoto lens patent

Patent literature, interpretation and self-summary (translated by google)

• Patent Publication No. 2011-197413 (Translated by google)
  
  • 2011.10.6 Release Date
  • Filing date 2010.3.19
• Example 1
  • Focal length f = 800.00mm
  • Fno = 5.61
  • Image height 21.60mm
  • Β =- 0.153 times the maximum magnification
  • 16 images 14 groups
• Group 4 consists of positive and negative polarity
• Inner Focus
  • The second focus group for
• Image stabilization
  • The third part of the group for the VR

Also see latest Nikon D800 Rumors.