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Sigma Patent 14mm F/3.5 for APS-C Mirrorless Cameras

Sigma Patent 14mm F/3.5 for APS-C Mirrorless Cameras

Sigma has patented a new formula for an ultra wide-angle 14mm f/3.5 lens for APS-C Mirrorless cameras in both ED and FLD variants. If it makes it to production, then Sony E-mount and Fuji X-mount cameras would be prime suspects for receiving their own versions of the lens. Check out the details below:

    • 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 ( sigma in ELD)
      • Fluorite 4 ( sigma in FLD)
    • Example 2
      • INF 200mm
      • Focal length 13.97 13.28
      • F-number 4.13 4.13
      • Full angle of view 2ω 90.90 92.68
      • The image height Y 14.20 14.20
      • Overall length of the lens 82.60 82.60
      • BF 17.6874
      • Lens configuration 8 groups 10 sheets
      • 2 aspherical three sides
      • ED 1 ( sigma in ELD)
      • Fluorite 4 ( sigma in FLD)

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Via: Egami.


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