Tamron Filed a Patent for a 10mm f/2.8 Fisheye Lens

Egami spotted a new patent filed by Tamron. The new Tamron patent describes a 10mm f/2.8 and 10mm f/1.8 fisheye lenses for APS-C based DSLR cameras.

The pending patent shows Tamron 10mm f/2.8 and 10mm f/1.8 fisheye lenses. These lenses are expected to have a reasonable weight and size. We hope Tamron introduce an AF capable and affordable price than the current Nikon 10.5mm f/2.8G ED AF DX Fisheye lens.

See below for the patent details translated by machine.

Tamron Filed a Patent for a 10mm f/2.8 Fisheye Lens



Description and self-interpretation of the patent literature

  • Patent Publication No. 2013-238684
    • Publication date 2013.11.28
    • Filing date 2012.5.14
  • Example 1
    • Focal length f = 10.21
    • Fno. 2.88
    • Angle of view 2ω = 181.00 °
    • 7 group 9-lens configuration
    • Total length 60.00mm
    • BF 35.00mm
  • Example 5
    • Focal length f = 10.00
    • Fno. 1.84
    • Angle of view 2ω = 181.00 °
    • 11 pieces 7 lens configuration
    • Two four-sided aspherical
    • Total length 70.00mm
    • BF 35.00mm

via EG

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