The main zoom unit ARRI ZMU-3A is an ergonomic zoom controller that works with the ALEXA Plus and Studio cameras and in combination with the UMC-4, SMC-1 and EMC-1 motor controllers.
The ZMU-3A zoom main unit is a zoom handle controller that can be mounted on tripod arms while connecting to the camera and the motor.It includes a force-sensitive zoom button that the thumbs of attendees around the world are familiar with.