The Olympus Zuiko Digital ED 12-60mm f2.8-4.0 SWD is a high performance standard zoom lens that introduces the SWD (Supersonic Wave Drive) autofocusing system and covers a zoom range equivalent of 24 ? 120mm on a 35mm camera lens. Special optical design ensures high definition performance with clear, crisp images from center to edge. This lens also boasts impressive close-up shooting capability, allowing photographers to shoot from as close as 9.8 inches throughout the zoom range.Autofocusing is powered by Olympus? breakthrough SWD. This extraordinarily fast autofocusing drive provides both high speed and high precision while operating with lower noise than ever. Optimized for use with the E-3 camera, this lens enables the E-3 to demonstrate the full power of its high speed capability.