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Firmware Update

Sigma 35mm F1.4 Lens Patent

sigma-35mm-lens-image

The 35mm F1.4 OS Lens patent surfaced over the web, the lens is made for fullframe camera and features built-in image stabilization, patent details below

Description and self-interpretation of the patent literature

  • Patent Publication No. 2014-48488
    • Publication date 2014.3.17
    • Filing date 2012.8.31
  • Example 6
    • Focal length f = 35.58mm
    • Fno. 1.45-1.68
    • Angles of view 2ω = 63.08-58.94 °
    • Image height Y = 21.60mm
    • The overall length of the lens 135.98mm
    • Mod. 300mm
    • 13 pieces of 11-group lens configuration
    • Two two-sided aspherical
    • One FLD
    • Rear focus
  • Example 9
    • Focal length f = 33.53mm
    • Fno. 1.45-1.67
    • Angles of view 2ω = 66.32-59.89 °
    • Image height Y = 21.63mm
    • The overall length of the lens 135.98mm
    • Mod. 300mm
    • 13 pieces of 11-group lens configuration
    • Two two-sided aspherical
    • Three ELD
    • Rear focus
    • Anti-vibration (Group 3)

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