Ultra-long focal length: With a long focal length of 500mm, it is suitable for long-distance shooting and can easily capture the details of distant scenes.Variable aperture: The aperture range is f8-f32, which can flexibly adjust the amount of light intake to adapt to different light conditions.Manual control: The manual focus method is used to accurately control the focus to meet the needs of photography creation.Interface adaptation: T2 port design, can be adapted to Sony micro single FE port (full frame), strong compatibility.Multi-scene application: It can be used for astronomical photography such as moon photography, and it is also suitable for conventional telephoto shooting scenes.