The Ricoh XR Rikenon 55mm f/2.2 is a lens from the Ricoh brand. The country of manufacture is Japan.
55 mm is the specified focal length of the lens. Therefore, it can be classified as a normal lens. The largest selectable aperture is f/2.2. The smallest aperture available is f/16.
The focus on this lens must be set manually. The minimum focusing distance is specified as 80 cm. The lens can be used on cameras with a Pentax K mount.
A 52 mm filter, e.g., an IR filter, can be screwed onto the front of the lens. The weight of the lens is specified as 144 grams.
