PENTACON 50mm f/1.8 lens, M42 mount, aperture from f/1.8 to f/16. - Brand: PENTACON - Model Name: 50mm f/1.8 - Aperture: f/1.8 - f/16 - Focal Length: 50mm - Mount Type: M42 screw mount There is thin scattered mold on the lens, but there were no photos that appeared to be affected. Depending on the direction of the light, streaks like scratches can be seen from the center outwards (photo 9). The focus ring and aperture ring move smoothly. Lens caps are not included (front and rear). It's a bit old, but I think it's still usable. Please understand that this is a used item before purchasing.