The SmallRig Mini Follow Focus Lens Zoom Control with A/B Stops is a compact and lightweight accessory designed for DSLR cameras. With a snap-on mount type, this wireless follow focus device allows for precise lens zoom control and features an LCD display for easy viewing. The adjustable design and compatibility with standard Φ15mm rods and NATO rail accessories make it a versatile choice for film photography and movie camera setups. this black follow focus lens is a reliable and efficient tool for capturing smooth and precise shots.