RICOH XR RIKENON 50mm F2 I am selling a variety of cameras and lenses. Please consider taking a look. #Click here for a list of cameras I am selling The RICOH XR RIKENON 50mm F2 generally uses the Pentax K mount and is a popular single-focus old lens, also known as the "Japanese Summicron." It is highly regarded for its very sharp depiction despite its low price, and is known as a lens with high cost performance. There are several variations, such as the late "L" version made by Tomioka Optical. Features and Specifications Mount: Pentax K mount (Please refer to the image just in case.) Focal length: 50mm Open aperture: F2 Filter diameter: 52mm Minimum shooting distance: 45cm Condition: Operation confirmed, exterior cleaned, alcohol disinfected Appearance: Minor scratches/small scratches due to aging / None Noticeable scratches, dents / None (See images) Optics: Dust / Little Mold / None Fog / None (Please forgive extremely minor dust, dust, scratches, and fog) Operation: Good Accessories: None I have checked the basic operation, but it is based on amateur subjectivity, not expert knowledge. I may have overlooked deterioration, rust, dirt, scratches, etc. This is a used item that has been in someone's hands once. Please refrain from purchasing if you are nervous or seeking perfection. I will do my best to provide a better transaction. Please be sure to read the description, images, and profile before considering your purchase. Returns and Warranty If there is an initial defect or a defect not described, we will refund the full amount including shipping. (Within 3 days of receipt, please contact us before evaluation.) Please note that the following items are not covered by the warranty. Items described as junk, Minute dust, mold, fog, rust, wear, deterioration, etc. Slight focus errors in rangefinder cameras and lenses. (We have not measured actual shooting, shutter speed, light sensitivity, etc.) Focal length...19-70mm Open F value...1.5-2 Other features...Old lens