Ricoh has filed a patent for a 24-90mm f/4 full-frame DSLR lens


Ricoh has filed a patent for a 24-90mm f/4 full-frame DSLR lens.

Pentax already had a 24-90mm f/3.5-4.5 SMC FA IF AL lens for K-mount:


Here are the details from the patent application:

  • Applicant: Ricoh Co., Ltd.
  • Publication number: P2022129113
  • Application number: P 2021027679
  • Publication date: 2022-09-05
  • F-number 4.1 4.1 4.1
  • Focal length 24.60 45.01 87.75
  • Half angle of view 42.4 25.4 13.7
  • Image height 21.64 21.64 21.64
  • Back focus 39.66 58.78 87.73
  • Total length 166.87 125.75

Via Digicame-info

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