Description: Allow to focus infinity. There is no ROM connection; all functions need to do manually. Work is very delicate, with the bayonet close and smooth. All metal precision machining, durable. You can transfer Canon EOS EF lens to Sony NEX E Mount Cameras. Specification: Color:Black Material:Metal Diameter:60mm Height:30mm Compatible with: for Sony NEX Series Cameras Package Includes: 1x Lens Adapter
