The Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS is a wide-angle zoom lens that is compatible with Sony E-mount full-frame and APS-C cameras. It has a constant maximum aperture of F4 and a focal length range of 16-35mm. This lens is also weather-sealed and has built-in optical image stabilization. It features a ZEISS T* anti-reflective coating that minimizes flare and ghosting. The lens also has five aspherical elements, including one Advanced Aspherical (AA) element and three extra-low dispersion Condition: Pre owned Any questions, please feel free to ask