Ricoh has a new patent for a Pentax DA* 11-18mm f/2.8 lens

Ricoh has filed a patent in Japan for what appears to be a new Pentax DA* 11-18mm f/2.8 DSLR lens. The patent was published today (June 21st) but it was first registered back in December 2016. Tokina already has an 11-16mm f/2.8¬†while Pentax currently has the 15-30mm f/2.8 lens. Here is one of the calculations … Continue reading Ricoh has a new patent for a Pentax DA* 11-18mm f/2.8 lens