This is a PENTAX FA28-70mm F4 lens that takes decent pictures. I'm selling it because I no longer use it. It's an older lens, so there's some dust inside, but I don't see any mold. This is just my amateur assessment. The autofocus works without any problems. It has been stored in a dehumidifying box. Please note that all sales are final, with no returns or claims. m(__)m - Model Name: PENTAX 28-70mm - Filter Diameter: 52mm - Focal Length: 28-70mm - Aperture: F4 Thank you for looking.