New Patent: Sigma 200mm f/2L IS USM Lens

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Besides the 70-300mm f/4-5.6 DG OS HSM lens, Sigma has filed a new patent for 200mm f/2L IS USM lens along with a TELE CONVERTER 1.4x. The main competitiors of the Sigma 200mm f/2L IS USM lens will be Canon EF 200mm f/2L IS USM Lens ($5,699) and Nikon 200mm f/2G ED VR II Lens ($5,696.95). The price of this Sigma 200mm f/2L IS USM lens is expected to be much cheaper.

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

  • 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: Egami

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