Ricoh patents a mirrorless lens… but don’t get too excited just yet

Pentax K-3 Mark III
Ricoh, via its Pentax brand, is committed to the DSLR design, as used in the new Pentax K-3 Mark III... so why has it patented a mirrorless telephoto lens? (Image credit: Ricoh)

Camera and lens makers often register patents for products that may or may not go into production, but the fact that Ricoh – the parent company of the Pentax brand – is looking at mirrorless lenses is surely significant?

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Rod Lawton

Rod is an independent photography journalist and editor, and a long-standing Digital Camera World contributor, having previously worked as DCW's Group Reviews editor. Before that he has been technique editor on N-Photo, Head of Testing for the photography division and Camera Channel editor on TechRadar, as well as contributing to many other publications. He has been writing about photography technique, photo editing and digital cameras since they first appeared, and before that began his career writing about film photography. He has used and reviewed practically every interchangeable lens camera launched in the past 20 years, from entry-level DSLRs to medium format cameras, together with lenses, tripods, gimbals, light meters, camera bags and more. Rod has his own camera gear blog at but also writes about photo-editing applications and techniques at