Sigma DG DN Lens for Sony Mirrorless Contemporary 16-28mm F2.8 E-mount, Zoom, Wide-Angle, Full-Frame Cameras,

By optimizing the lens configuration through a short flange back and optical design that takes into account the camera's optical correction function, we achieved both high optical performance and a compact size. By arranging five FLD glass elements precisely, lateral chromatic aberration and axial chromatic aberration, which are particularly problematic in ultra-wide-angle lenses, are effectively suppressed. The super multi-layer coating provides excellent performance in backlit situations. Sony E-mount 16-28mm F2.8 Zoom Wide-angle Mirrorless full-frame