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Continue to ChatPentax Hoya is now Pentax Ricoh (Imaging) https://photographybanzai.com/2011/10/01/pentax-hoya-is-now-pentax-ricoh-imaging/
Pentax Hoya is now Pentax Ricoh (Imaging) https://photographybanzai.com/2011/10/01/pentax-hoya-is-now-pentax-ricoh-imaging/