The Sigma 170-500mm f/5-6.3 APO DG Aspherical lens is a compact aporchromatic ultra telephoto zoom lens that covers the range up to 500mm, and is ideal for sports, nature and landcape photography.
This lens combines a 5 lens group zoom system with an aspherical lens element to deliver sharp high contrast images throughout the entire zoom range. Using Sigma's apochromatic lens design and three SLD glass elements, the aberrations usually found in ultra-telephoto lenses have been eliminated.
Zoom Telephoto 170-500mm f/5-6.3 APO DG Aspherical Autofocus Lens for Pentax AF
Front & Rear Lens Caps
Hard Lens Case