Voigtlander 23mm f/1.2 APS-C and 35mm f/1.4 Full Frame Patents Found

By Louis Ferreira | Published: July 7, 2023


overview

  • [Publication number] P2023090337
  • [Release date] 2023-06-29
  • [Title of invention] Optical lens system
  • [Application date] 2021-12-17
  • [Applicant]
    [Identification number] 391044915
    [Name] Cosina Co., Ltd.
  • An object of the present invention is to provide a compact and high-performance lens by effectively utilizing an aspherical lens.

Example 1

  • Focal length: 23.6
  • F-value: 1.22
  • Half angle of view: 31.5
  • Image height: 14.2
  • Overall length: 55.7
  • Back focus: 14.8


Example 3

  • Focal length: 34.3
  • F-value: 1.21
  • Half angle of view: 32.4
  • Image height: 21.6
  • Overall length: 71.8
  • Back focus: 19.3


Example 4

  • Focal length: 34.7
  • F-value: 1.46
  • Half angle of view: 31.7
  • Image height: 21.6
  • Overall length: 60.0
  • Back focus: 16.1

via asobinet

Related posts:

  1. Voigtlander NOKTON 23mm f/1.2 ASPH and VM-E Close Focus Adapter II Confusion
  2. Voigtlander Nokton 23mm f/1.2 Aspherical Release Details
  3. Voigtlander Nokton 23mm f/1.2 Disassembled
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