New Ergonomic Drive Unit With the launch of the HJ14ex4.3B, Canon introduced a totally new design of the digital drive unit. Refined by long-term market research and worldwide experience, Canon mobilized the latest in 3D CAD-CAM design to significantly improve the human tactile interface to the control of zoom, iris, and focus. Of course, all the advantages from the current e-HDxs Digital Drive Unit such as "Information Display for user customize setting", "Rotary Encoder for virtual studio integration and precise control" and "Enhanced Digital Functions" are inherited to the new drive unit. *The new drive is loaded with the New HJ14ex, KJ17ex and the Poratable HDTV lenses that has ‘A’ at the end of its model name such as ‘IRSE A’, ‘IASE A’. Here are some features of the new drive unit.   By reducing the width of the drive unit, the palm of the camera operator's hand is positioned closer to the optical axis, thus reducing the degree of arm bend which in turn lessens physical stress during prolonged shooting.   The size and curvature size have been optimized to more comfortably fit in the palm of the operator’s hand(a). Newly developed coatings improve the tactile interface between the user and the drive unit (b) together with the new Rubber Grip Support (c).   The spacing between the focus ring and drive unit has been changed to avoid accidental interference with the drive unit while manipulating the focus control.