The lens with a large F1.2 aperture features advanced autofocus performance as well as professional handling and reliability. The image quality has been significantly improved, providing phenomenally clear images and an ultimately beautiful visual experience. The super large aperture of F1.2 opens up more possibilities in low light, allowing for longer shutter speeds and lower ISO settings. The built-in stepping motor with its algorithm delivers the high driving force necessary for precise autofocus and tracking. It can achieve fast, smooth, precise, and quiet autofocus and tracking even at extremely shallow depths of field. Additionally, it supports eye autofocus, animal focus, and other recognition functions. Improved response, lower latency, and reduced vibrations.