FD-AI FD-NIK Lens Macro Adapter Ring for Canon FD Lens to for Nikon AI Lens Features: 1. It is made of metal material, durable and sturdy 2. It is easy to install, remove and use 3. The adapter step up ring has impact resistance 4. It is durable and reliable for long-term use 5. A useful thing to achieve optimal shooting effect 6. Material: Copper/aluminum alloy 7. Applicable models: Suitable for Canon all FD lenses and Nikon all F-mount digital SLR cameras 8. Function: full manual control, manual focus, manual exposure, aperture priority, infinity out of focus Package Includes: 1 x Lens mount adapter(others not included) Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!