This lens was purchased used two years ago. There are small scratches on the exterior from use, but there is no mold or haze. There is some dust inside the lens, but it does not affect the photos at all. The aperture and focus operations are also very smooth. I was using it until last week, but I've decided to sell it to someone who needs it, so I'm listing it. I have corrected the listing to indicate that it is a Nikkor 28mm f/2.8 AI lens (not AIS). Because it is an AI specification, the aperture is controlled by the camera. Please be aware of this. - Brand: Nikon - Model Name: ai 28mm f/2.8 - Aperture: f/2.8 - Lens Type: Prime lens - Minimum Focusing Distance: 0.3m Thank you for looking.