Sigma Patent for 35mm f/1.4 Full Frame Lens

Egami spotted a new patent filed by Sigma. The new patent describes a Sigma 35mm f/1.4 lens for full frame DSLR cameras. The new lens in the patent features built-in image stabilization. 

Sigma currently has the popular 35mm F1.4 DG HSM lens which is currently priced for $899. This could be the ART version and refer to a Sigma 35mm f/1.4 DG HSM Art lens. The lens has optical design of 11 grup in 13 elements.

See below for the patent details, translated by machine!

Sigma Patent for 35mm f/1.4 Full Frame Lens

sigma_35_f14_lens

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)

via EG