The Rodenstock Apo-Sironar:N is a 210 mm lens suitable for wildlife and sports photography. With an aperture range of f/5.6-64, this Rodenstock lens allows you to control the amount of light as per your requirements. The 72-degree angle coverage of this 210 mm lens lets you easily compose your shots. With a construction of 6 elements in 4 groups, this Rodenstock lens reduces aberrations, thus delivering sharp and clear photos. The Rodenstock Apo-Sironar:N accepts 67 mm filters to protect it from dust and graze.