Ricoh Rikenon 28mm 1:2.8 Wide Angle Lens Pentax K PK Mount Very Good Condition

Focusing as close as 25–30 cm depending on the version, it achieves a 0.13× magnification ratio, while maintaining a lightweight form factor at around 180–220 g and a modest 37–42 mm length. The lens accepts 52 mm filters and features smooth manual focusing, a short helicoid throw, and clear distance and depth-of-field markings.