Sigma 200mm f/2 DG OS HSM Sports Lens Patent

200mm-f2-lens

Sigma Japan has just filed a new lens patent on Sigma 200mm f/2 DG OS HSM Sports lens. And Sigma also filed a TELE CONVERTER 1.4x for Sigma lenses. Canon and Nikon both has their 200mm f/2 lenses, both cost $5,699, the Sigma 200mm f/2 DG OS HSM lens could be much cheaper.


sigma 200 f2 s

  • Patent Publication No. 2016-45314
    • Published 2016.4.4
    • Filing date 2014.8.21
  • The master lens
    • Focal length 194.93
    • F-number 2.05
    • Full angle of view 2ω 12.70
    • The image height Y 21.63
    • Overall length of the lens 231.33
    • BF 60.2233
  • Complex lens
    • Focal length 274.52
    • F-number 2.89
    • Full angle of view 2ω 9.06
    • The image height Y 21.63
    • Overall length of the lens 252.18
    • BF 39.5088

via: EG