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Nikon patent of 100-400mm F4-5.6

Nikon applied for a patent about 100-400mm F4.0-5.6 for FX format digital lens. Nikon will renew 80-400/4.5-5.6D as 100-400/4-5.6G not 80-400/4.5-5.6G soon.

Nikon applied for a patent about 100-400mm F4.0-5.6 for FX format digital lens. Nikon will renew 80-400/4.5-5.6D as 100-400/4-5.6G not 80-400/4.5-5.6G soon.

日本語ページはこちら(Japanese page is here.)

2010_276744_fig05.png

paten:100-400mm F4.0-5.6

aiaf_vr80_400_45_56d_ed.gif

Ai AF VR Zoom-Nikkor 80-400mm f/4.5-5.6D ED (2000)

  • Patent Publication No.2010-276744
    • published 2010/12/09
    • filled 2009/05/27
  • Embodiment2
    • focal distance f=102.00-392.00mm
    • Fno=4.12-5.77
    • angle of view 23.68-6.15
    • image circle 43.2mm
    • lens length 255.00mm (インナーズーム)
    • back focus 55.0000-74.4012mm
    • MOD 1.8m
    • aspherical 1
  • 5 groupes zoom lens
  • rear fous type

A patent of Nikon was just shown one year ago. It is AF-S Nikkor 80-400mm F4.5-5.6G ED VR. Nikon improved it more and assumed it AF-S Nikkor 100-400mm F4-5.6G ED VR.

2010_276744_fig06.png

Performance at INF(a=102.00mm、b=200.00mm、c=392.00mm)

2010_276744_fig07.png

Performance at MOD=1.8m(a=102.00mm、b=200.00mm、c=392.00mm)


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Nikkor   Nikon