Nikon filed a patent for a 24-70mm f/3.5-4.5 full frame lens

Nikon filed patent application 2011-221421 in Japan for a 24-70mm f/3.5-4.5 full frame lens. This lens only makes sense as a part of a "cheap" full frame body kit. The patent contains several different calculations:

Example #1:

  • Focal length: 24.70-68.00
  • Aperture: 3.51-4.51
  • Omega (half field of view): 42.63-16.87
  • Image height: 21.6-21.6
  • Overall length: 112.599 - 138.896
  • Back focus: 38.818-54.481

Example #2

  • Focal length: 24.70-82.50
  • Aperture: 3.60-4.60
  • Omega (half field of view): 42.62-14.04
  • Image height: 21.6-21.6
  • Overall length: 121.098 - 158.098
  • Back focus: 38.818-58.586

Example #3

  • Focal length: 28.80-102.00
  • Aperture: 3.63-4.62
  • Omega (half field of view): 38.28-9.85
  • Image height: 21.6-21.6
  • Overall length: 123.531 - 157.844
  • Back focus: 38.818-54.339

Example #4

  • Focal length: 24.70-87.20
  • Aperture: 3.60-5.80
  • Omega (half field of view): 42.64-11.49
  • Image height: 21.6-21.6
  • Overall length: 124.699 - 156.696
  • Back focus: 38.819-56.191

Example #5

  • Focal length: 22.55-77.20
  • Aperture: 3.59-5.78
  • Omega (half field of view): 45.22-15.08
  • Image height: 21.6-21.6
  • Overall length: 126.365 - 166.395
  • Back focus: 38.819-68.503
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