Ricoh XR Rikenon 50mm f=1:2 - Pentax Mount

The Ricoh XR Rikenon 50mm 1:2 (f/2) L is a highly regarded, budget-friendly manual focus prime lens. Famous for its incredible sharpness and compact size, it is a staple for both vintage film and modern digital mirrorless cameras.  This lens is in excellent condition. Very clean with hardly any signs of use.  The barrel of the lens has no noticeable signs of wear.  The glass is clear and sharp with no scratches, cleaning marks, signs of dust, separation or fungus or mold.  The blades are clean with no oil.  The focus ring moves beautifully and the aperture ring clicks easily.  All the graphics on the lens are clear and look fresh.  The lens comes with a Pentax rear lens cap and a new lens cap.  Please message with questions.   Key Specifications  Focal Length: 50mm Max Aperture: f/2 Min Aperture: f/16 Lens Mount: Pentax K (non-A) Optical Formula: 6 elements in 5 groups Aperture Blades: 6 curved blades Minimum Focus: 0.44m (17 inches) Filter Size: 52mm Weight: ~141 grams Design & Handling  The Rikenon 50mm f/2 is exceptionally lightweight and compact, feeling almost like a pancake lens when mounted on a camera. Early versions feature a robust metal construction, while later (often S or L) variations lean slightly more toward a plasticky build. It features a smooth focusing helicoid that operates in the same direction as Pentax manual lenses, making it a comfortable native fit.