The Arri FF-4 is a professional-grade follow focus system that is designed to give you precise control over your focus when shooting. The FF-4 features a durable design that is built to withstand the rigors of professional use. The unit is also compact and lightweight, making it easy to transport and set up on location.One of the standout features of the FF-4 is its smooth, precise focus control. The system is equipped with an adjustable dampening mechanism that allows you to fine-tune the amount of resistance in the focus knob, giving you the exact level of control you need for your shot. The gear ratio can also be adjusted to match the specific lens you are using, ensuring that you always have the right amount of control over your focus.The FF-4 is also incredibly versatile. It is compatible with a wide range of cameras and lenses, making it a great choice for any production. Whether you’re shooting with a DSLR, a cinema camera, or something in between, the FF-4 is up to the task.