Items included: Sigma TC-1401 1.4x Teleconverter for Nikon F, Lens Cap, Rear Lens Cap, Soft Carrying Case, Full Cleaning Kit, Lens Cap Keeper, Lens Pouch, 64 GB Memory Card, Card Reader, Card Wallet. Increased Focal Length:Extends focal length by 1.4x for compatible Sigma Global Vision lenses, offering more reach for telephoto photography.. Autofocus Compatibility: Maintains autofocus functionality with a maximum aperture of up to f/8, ensuring efficient performance for high-speed shooting.. Special Low Dispersion Element: Reduces chromatic aberrations to preserve image quality and clarity.. Durable Design: Dust and splashproof construction ensures reliable use in challenging conditions.