Patents for Nikon 24-120mm f/4 and 28-300mm f/3.5-5.6 lenses

Japanese Patent application 2010-175899 (release date: August 12, 2010 | filing date: January 30, 2009) seems to cover several different lens designs, two of them are for the lenses that will be announced tonight:

  • Nikon AF-S Nikkor 24-120mm f/4G ED VR:
    • f = 24.70-116.39mm
    • Fno = 4.12-4.14
    • Angle: 85.24-20.28 °
    • Image circle: 43.2mm
    • Length: 146.351-190.957mm
    • Back focus: 38.496-64.317

More details after the break:

  • Nikon AF-S Nikkor 28-300mm f/3.5-5.6G ED VR (also to be released tonight):
    • Focal length f = 28.79-292.00mm
    • Fno = 3.57-5.96
    • Angle: 76.52-8.16 °
    • Image circle: 43.2mm
    • Length: 159.888-232.653mm
    • Back focus 38.422-79.261

  • Nikon AF-S DX Nikkor 18-105mm f/3.5-5.6G ED VR II – maybe the kit lens for the D90 replacement in September? I doubt it.
    • Focal length f = 18.39-101.99mm
    • Fno = 3.63-5.84
    • Angle: 80.32-16.00 °
    • Image circle: 29.0mm
    • Length: 134.064-177.708mm
    • Back focus 39.008-66.008

  • AF-S DX Nikkor 18-200mm F3.5-5.6G ED VR III – this one is portably few years away, VRII was just announced last year.
    • Focal length f = 18.50-195.00mm
    • Fno = 3.58-5.89
    • Angle: 79.78-8.44 °
    • Image circle: 29.0mm
    • Length: 141.720-207.403mm
    • Back focus: 38.000-80.450

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