This mount adapter is for Nikon cameras to attach T2/T mount lens. Features: This mount adapter is for Nikon AI mount cameras to attach T2/T mount lens. Completely manual control, manual focus and manual exposure. There is no electrical connection on the ring so diaphragm control of the lens is set manually. Easy and smooth to install, remove and operate lens. It can focus to infinity. Equipped with a stop pin. With a mini hex key to help tighten or loosen the screw. Made of high-quality material, durable for long time use. Specifications: Material: Metal Color: Black Compatible Lens: for T2/T mount lens Compatible Camera: for Nikon AI mount cameras Package Weight: Approx.39g / 1.4oz Package Size: Approx.7 * 7 * 1.5cm / 2.7 * 2.7 * 0.6in Note: Please make sure that the adapter ring fit for your camera before you bid this item. Package List: 1 * Adapter Ring 1 * Mini Hex Key