Bundle Includes: Sigma 24-70mm F2.8 DG DN II Art Lens with High Sharpness and Water-Resistant Design (L-Mount) and Corel Software Bundle of 4 Softwares OEM Photo, Video, and Art Software Suite Whats New: The Sigma 24-70mm F2.8 DG DN II Art has improved resolving power throughout the entire zoom range and also benefits from the addition of an aperture ring and high-speed AF with a redesigned AF motor, HLA (High-response Linear Actuator) High Sharpness: The lens has high sharpness throughout the entire image from its maximum aperture, even on high-resolution cameras. Focusing on enhancing its rendering performance, the brightness of F2.8 produces a large, beautiful bokeh effect Minimal Focus Breathing: In addition to its advanced close-up capability and resistance to flare and ghosting, the lens is designed to minimize focus breathing, providing ideal images in any situation