Nikon AF-S FX NIKKOR 800mm f/5.6E FL ED Vibration Reduction Fixed Zoom Lens with Auto Focus for Nikon DSLR Cameras Included AF-S TELECONVERTER TC800-1.25E ED increases overall focal length to 1000mm Groundbreaking FX-format 800mm f/5.6 prime lens for sports Vibration Reduction enables handheld shooting at up to four shutter speeds slower than would otherwise be possible