Sigma Files Patent for 20mm f/1.8 DG HSM Contemporary Lens

According to the Egami Blog, Sigma has filed a patent for a 20mm f/1.8 optical design earmarked for their Contemporary lineup.
 
If / when this lens is released, it will likely be the first prime lens in Sigma’s Contemporary series of lenses.
 
Description of Patent
 
Patent Publication No. 2016-12034
 

  • Published 2016.1.21
  • Filing date 2014.6.30
  • Focal length 20.70 21.01
  • F-number 1.84 1.95
  • Full angle of view 2? 93.42 90.34
  • The image height Y 21.63 21.63
  • Overall length of the lens 139.73 139.73

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