This item is in excellent condition, having only been mounted and never taken outside. Nikon F to Nikon Z Mount Adapter Made by K&F Concept. Converts Nikon F mount lenses to Nikon Z mount. - Model: NIK F-NIK Z - Brand: K&F Concept - Accessories: Case - Product Type: Lens Adapter Compatible Camera Mounts: Nikon Z mount (Nikon Z9, Z7II, Z6II, Z7, Z6, Z5, Z50, zfc, etc.) Electronic control of the lens is not possible. Focusing is manual focus. You can use older lenses with the latest Z mount cameras. Thank you for looking.