SUPERIOR IMAGE QUALITY - Features 19 elements in 12 groups, including UED, ED, and UHR lenses, ensuring exceptional clarity and sharpness across the entire zoom range. VERSATILE FOCAL LENGTH - A 100-500mm telephoto zoom lens provides extensive reach for diverse photographic scenarios, from wildlife to sports, on full-frame L-Mount cameras. ENHANCED STABILIZATION - Integrated Optical Image Stabilizer (O.I.S.) minimizes camera shake, delivering sharp, blur-free images even at extreme telephoto settings and slower shutter speeds. RELIABLE WEATHER SEALING - Dust and splash-resistant construction protects the lens in challenging environments, allowing for confident shooting in various weather conditions.