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

• 2 years ago
• Categories: Patents, Pentax lenses

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

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