New Patent: Sigma 14mm F/3.5 Lens

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Sigma-10-20mm-f3.5

Sigma has filed a new patent for Sigma 14mm F/3.5 Lens，which will be designed for APS-C mirrorless cameras.

New-Patent-Sigma-14mm-F3.5-Lens

Take a look at the patent details below translated by Google.

Patent Publication No. 2016-139087

  • Published 2016.8.4
  • Filing date 2015.1.29

Example 1

  • INF 200mm
  • Focal length 13.98 13.28
  • F-number 3.53 3.54
  • Full angle of view 2ω 90.74 92.90
  • The image height Y 14.20 14.20
  • Overall length of the lens 89.25 89.25
  • BF 17.5750
  • Lens configuration 8 groups 10 sheets
  • 2 aspherical three sides
  • ED 1 (ELD in sigma)
  • Fluorite 4 (FLD In sigma)

via: Egami