This Nikon AF NIKKOR 300mm f/4 ED Autofocus IF Lens is a high-quality lens that is perfect for photography enthusiasts. It is compatible with Nikon cameras and has a maximum aperture of f/4. The lens is designed with both auto and manual focus options, allowing you to have greater control over your shots. The lens is made in Japan and is part of the Nikon NIKKOR AF series. It has a fixed/prime focal length type and is sold with a 39 drop-in/filter. This lens is perfect for those who are looking for a high-quality lens that is reliable and efficient.