Using this Fujinon broadcast lens is easy. First, securely attach it to your compatible camera. When shooting, you can adjust the focal length from 8.5mm to 170mm according to your subject distance and composition needs. The 1:1.8 aperture allows for great light intake, which is useful in low - light conditions. For maintenance, keep the lens clean by using a soft, lint - free cloth. Avoid touching the lens surface with your fingers. Store it in a dry and dust - free place when not in use. And always be careful when transporting it to prevent any impacts or scratches.