Product Description Manfrotto 521PRO can be used for a wide variety of applications. It can be mounted to a huge range of supports such as pipes, bars, tubes and flat surfaces. It enables you to control power, recording, zoom and focus. The 521PRO features manual focus buttons and an auto focus button allowing you to achieve in-focus images easily when working in manual focus mode. It also has a progressive zoom speed, a fixed zoom speed or a customizable maximum speed, which you can set to exactly the level you want. To set a Custom zoom speed, simply hold the zoom speed button until the LED flashes and use the wheel to record your speed.
