Rikenon 28mm f/2.8 lens, φ52mm, first-generation steel body made by Tomioka Optical. Commonly known as the "Japanese Summicron." - Brand: Ricoh (Rikenon) - Model: 28mm f/2.8 - Filter Diameter: 52mm - Lens Type: Prime - Manufacturer: Tomioka Optical - Generation: First Generation - Body: Steel - Country of Manufacture: Japan - Accessories: Front and rear lens caps Thank you for viewing. I believe there may be some mold or slight haze on the lens. There are no issues with the focusing ring operation or the aperture blades. The front lens cap is Ricoh, and the rear lens cap is Pentax. Please check the images for more details on the condition of the lens. This is a used item, so please refrain from bidding if you are concerned about its condition. Focal Length: 19-70mm Maximum Aperture: f/2.1-2.8 Other Features: Front lens cap included, rear lens cap included, old lens #TestedAndWorking #ricoh #ricoh #TomiokaOptical #rikenon #rikenon #EarlyModel #FirstGeneration #StandardLens #PrimeLens #PentaxKMount #pentax #KMount #OldLens