This is the Z-mount version. I purchased it new and probably only took it out about five times, after which it became a fixture in my dry cabinet. I am selling it to organize my equipment. From a layman's perspective, there don't seem to be any noticeable issues. It comes with the original Tamron lens cap, rear cap, and lens hood. This is a 70-300mm zoom lens compatible with NIKON Z mount, with a brightness of F/4.5-6.3, suitable for various shooting scenarios. - Brand: TAMRON - Model Name: 70-300mm F/4.5-6.3 Di III RXD - Compatible Mount: NIKON Z - Included Accessories: Lens hood, lens cap - Focal Length: 70-300mm - Maximum Aperture: F/4.5-6.3 Thank you for looking. Focal Length (Wide): 19-70mm Focal Length (Telephoto): 201-300mm