Panasonic Lumix G VARIO 100-300mm/F4.0-5.6 II/POWER O.I.S. H-FSA100300
Opening aperture F4.0 (W end) to F 5.6 (T end). Important Safety Note (If applicable): [Safety Warning for Button/Coin Batteries] Button/coin batteries can cause severe injuries or even death when swallowed.