The Panasonic Lumix S PRO 70-200mm f/2.8 O.I.S. lens is tailored for shooting events, portraits, and various other medium-distance subjects. Featuring a constant maximum aperture of f/2.8 for optimal light capture, this L-mount telephoto zoom lens boasts high-resolution optics with several aspherical and low dispersion elements to mitigate chromatic and spherical distortions. A dual focus mechanism combines a linear and stepping motor for exceptionally fast and accurate autofocus, while a focus clutch allows instant AF/MF switching. In addition, the built-in Optical Image Stabilizer mitigates camera shake enabling more precise handheld imagery, and its durable weather-sealed construction suits it for challenging environments.