Ricoh has a new patent (JP2024-067293A) for a 14mm f/3.5 APS-C lens for K-mount (21mm equivalent). The inventor is Takahiro Nakayama, the same person who designed the optics of the HD Pentax-DA★ 16-50mm f/2.8 ED PLM AW lens. Additional information from the patent filing:
Rumors for a new HD Pentax-D FA 70-300mm f/4.5-5.6 ED PLM WR SR lens have been going on for a while – see also the latest Pentax lens roadmap that indicates a similar zoom lens: A corresponding 70-300mm lens was already filed by Ricoh back in 2020. Another 70-300mm f/4.5-5.6 lens patent was just listed […]
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:
Ricoh has a new patent application for multiple full-frame lenses including 21mm f/2.4, 18mm f/2.4, 16mm f/2.4, and 14mm f/2.4:
Ricoh has filed a patent for a 18-100mm f/2.8 APS-C lens (28-150mm equivalent) – here are the details:
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