The ERD-40A-D01 is a professional-grade zoom demand for portable broadcast lenses. The optimally sized and shaped grip is coated with rubber to perfectly fit hands of all sizes. The zoom lever allows close contact with the thumb for comfortable rotation and buttons on the compact and cleverly shaped body that are reachable in any position. The operator can even customize settings such as zoom speed and lever torque as needed for the right response in a variety of situations from studio recordings to sports broadcasts.