Vivitar Series I 100-500mm f/5.6-8 Macro lens offers superior contrast and resolution from edge to edge throughout the zoom range with low dispersion optics. Multi-coating minimizes flare and ghosting while increasing light transmission. This one-touch telephoto zoom lens offers the outdoor photographer amazing versatility because of its 5X zoom range. The 100-500mm range spans from portrait length to ultra-telephoto with ease. It features a rotating tripod collar and continuous macro focusing.