Ricoh’s Wide-angle, APS-C-format Lenses for K-mount DSLRs for Outdoor Photography: Portable Full-frame HD PENTAX-FA35mmF2; Dustproof/Weather-resistant/-10°C Cold-resistant HD PENTAX-DA★11-18mmF2.8ED DC AW Zoom with Focus Clamp Mechanism and a Lens Heater Groove to Prevent Condensation 2019-03-07
Ricoh: New HD PENTAX-D FA645 35mmF3.5AL[IF] Wide-Angle Lens for Use with Medium-Format Digital SLR Cameras for Shooting Scenic Photography 2015-12-02
