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