Samyang AF 24-70mm F2.8 FE is Samyang's first Auto Focus Standard Zoom lens equipped with various functions optimized for video shooting that is different from other standard zoom lenses. This zoom lens delivers a 24-70mm (wide-angle to short-telephoto) angle of view and a bright maximum aperture of F2.8 throughout the entire zoom range, as commonly utilized by full-frame camera users, the optimum resolution is achieved through the optical design of 17 elements in 14 groups (2 ASP, 1 H-ASP, 3 HR, and 3 ED). Zoom Lens Offering Stable Video Recording: In a professional video recording environment that utilizes follow focus, it provides a par-focal function that maintains focus on the subject when zooming in and out.