The Sony Vario-Tessar T FE 24-70mm f/4 ZA OSS Lens is a wide-angle to portrait-length zoom lens that features a constant f/4 maximum aperture to support consistent performance in regard to exposure settings and focus placement throughout the zoom range. Five aspherical elements and one extra-low dispersion element help to reduce aberrations and distortions while contributing to notable image sharpness and clarity. A Carl Zeiss T anti-reflective coating has also been applied to lens elements to reduce lens flare and ghosting for improved contrast and color fidelity.