Sigma’s patent for a 11-22mm f/4.5-5.6 DG HSM FLD Art lens

Sigma 11-22mm f:4.5-5.6 DG HSM FLD Art lens patent
Sigma filed a patent in Japan for a 11-22mm f/4.5-5.6 DG HSM FLD Art full frame lens. This will be a nice addition to the current Sigma Art product line. Here are the details:

  • Patent No. 2015-203734
  • Published: 2015.11.16
  • Filing date: 2014.4.11
  • Zoom ratio: 1.88
  • Focal length: 11.33 15.33 21.30
  • F-number: 4.50 5.00 5.86
  • Total angle of view 2ω: 126.85 108.80 87.93
  • Image height: 21.63 21.63 21.63
  • Overall length of the lens: 163.42 156.24 156.59

Via Egami

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