Nikon Nikkor 300mm f/2.8 IF-ED is a high performance telephoto lens ideal for sports and fast-action photography. The lens provides optimal balance and operation, even during manual focusing. This exceptionally crafted internal focusing lens, employs ED glass elements to promise high-resolution and stunning contrast. It features eight elements in nine groups lens construction, 8° viewing angle, 10' close focusing distance, nine-rounded diaphragm blades  and 39mm filter thread.