A long-reaching and highly versatile lens, the Sony FAE 100-400mm f/4.5 GM OSS is the super-telephoto zoom built without compromise; it's designed to meet the needs of the professional wildlife, birding, sports, and journalism photographers. Thanks to a portable design with internal zoom and focus, as well as the renowned G Master optical capabilities, this constant maximum aperture zoom offers the performance and rendering required for photographing small and distant subjects at high speeds with high precision.