Leica 23mm f/2 ASPH lens patent

Leica 23mm f:2 ASPH lens patent
Last year Leica filed a patent in Japan for a 23mm f/2 ASPH lens designed for mirrorless APS-C cameras. This could be a variation of the lens on the Leica X (23mm f/1.7) or the existing Summicron-T 23mm f/2 ASPH lens for TL mount. Here are the details:

  • Patent publication: 2015-191237
  • Published on: 2015.11.2
  • Filed on: 2014.3.28
  • Applicant: Leica Camera Aktiengesellschaft
  • Focal length: 23mm
  • Fno: F2.0
  • Back focus: 15.7mm
  • Total length: 54mm
  • Image circle: 28.4mm
  • Inner focus
  • Aspherical element
  • The optical design by code V

Via Egami

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