The Sigma 24-70mm F2.8 Dg Dn Ii | Art is Sigma's flagship lens that has evolved significantly from the previous model by incorporating the most advanced technologies available to Sigma from design to production. Compared to the previous Sigma 24-70mm F2.8 Dg Dn | Art, the Sigma 24-70mm F2.8 Dg Dn Ii | Art has improved resolving power throughout the entire zoom range, and also benefits from functional enhancements such as the addition of an aperture ring and high-speed Af with a redesigned Af motor, Hla (High-response Linear Actuator). The lens is also approximately 7% smaller and 10% lighter. This 24-70mm F2.8 Art zoom is a versatile and high-performance tool that will help photographers and filmmakers unlock their creative potential.Rendering performance worthy of the flagship nameThe Sigma 24-70mm F2.8 Dg Dn Ii | Art is the successor to the Sigma 24-70mm F2.8 Dg Dn | Art, which is known for its high optical performance, and has further improved resolution throughout the zoom range..