Thank you for viewing! M42 mount. Appearance: No noticeable scratches. Cleaned with alcohol. Optics: Cleaned. No mold, fogging, or scratches. Some dust particles present. *I tested it by attaching it to a mirrorless camera. Operation: Smooth helicoid movement. Aperture blades function well, no oil stains. Included items: ・Lens filter ・Rear cap Evaluation is based on subjective judgment: I have described any areas of concern regarding the condition, but there may be individual differences in perception, and I may not mention areas that I have deemed acceptable. As this is a used item, I believe that those who are concerned about minor details may not be satisfied, so I would appreciate it if someone with a tolerant understanding of old cameras and lenses would cherish it. Immediate purchase is welcome: This item may be listed on other domestic and international sites simultaneously. In the unlikely event of a sale due to a discrepancy, we will cancel the order. Please understand this in advance. Return Guarantee: If there is any discrepancy with the listed content, we will refund the full amount including shipping. (Please contact us before rating the item.) Thank you for reading to the end! #I0288 Focal length...19-70mm Maximum aperture...1.5-2 Other features...Old lens