Nice film era zoom lens. Part of the Tamron Adaptall series which uses interchangeable mounts. This copy has the Canon FD version. Aperture, focus and zoom all work smoothly. Some "zoom creep". Blades are clean. Aperture range is f3.8-4 to 32. Glass is in good shape, no haze or fungus, some dust which does not appear to affect image quality. Minimum focus distance is about 3 feet, but has macro capability down to 1:2.8. Moderate cosmetic wear. Includes caps. Please review photos and test images. Test pictures are Sony jpgs (full frame sensor) and are straight out of camera.