The Panasonic Lumix S 100-500mm f/5-7.1 O.I.S. is a professional super telephoto zoom lens designed for full-frame L-Mount cameras. Covering a focal range from 100 to 500 mm, it delivers outstanding optical performance in a compact and well-balanced body. It is ideal for wildlife, sports, and travel photography, offering exceptional sharpness and stability even with distant subjects. The optical construction includes 19 elements in 12 groups, with UED, ED, and UHR lenses that minimize aberrations and ensure faithful color reproduction. The built-in Optical Image Stabilizer, compatible with Dual I.S. 2, provides up to 7 stops of compensation for handheld shooting at long focal lengths. Its linear AF motor ensures fast, smooth, and silent focusing, making it equally suitable for video recording. The lens is dust, splash, and freeze resistant down to -10 °C, making it reliable in challenging environments. The Tight–Smooth zoom adjustment ring allows users to set their preferred zoom tension, and compatibility with 1.4x and 2.0x teleconverters extends the focal reach up to 1000 mm while maintaining excellent image quality. Weighing approximately 1.3 kg, the Lumix S 100-500mm f/5-7.1 O.I.S. is the perfect choice for photographers seeking a professional, lightweight, and highly versatile super telephoto zoom lens.