Various companies have introduced portable HD cameras with lens-aberration correction functions. The KJ20x8.2B KRSD portable HD zoom lens is fitted with a camera-communication interface to support these separate aberration correction functions.*In addition to its optical sophistication, the new KJ20x8.2B KRSD portable HD zoom lens also features Canon’s improved Advanced Drive Unit technology. This technology is famous for the convenience and control it affords to camera operators using Canon portable HD lenses. Advanced Drive Unit technology for the new KJ20x8.2B KRSD includes Shuttle Shot, a Canon-exclusive technology that enhances production capabilities. At the touch of a button, Shuttle Shot allows the operator to rapidly zoom back and forth between any two positions. Shuttle Shot can be used to zoom to the telephoto position to check focus and almost instantly return to the original position, or users can “shuttle” between any two zoom-positions at any time. Users can set specific Shuttle Shot zoom positions using a simple “Memo” push switch; the switch enables more reliable Shuttle Shot set-up in the field, where more consistent functioning of the controls is required. The KJ20x8.2B KRSD’s zoom can travel end-to-end in as little as 1.0 second, an improvement over the speed of previous models; although faster, special noise suppression on the servomotor inside the Advanced Drive Unit ensures very quiet operation. The KJ20x8.2B KRSD Advanced Drive Unit also features an ergonomically re-designed, tilted shape for user comfort, convenience, and balance. The operator’s tactile connection with the lens is enhanced by a ribbed surface on the bottom of the Drive Unit to ensure a firmer grip and better overall operational control. A new grip support allows users to firmly grasp the drive Unit without inadvertently pressing on the VTR or Shuttle Shot buttons. The KJ20x8.2B KRSD will have an estimated list price of $5,800 and an estimated delivery date of March, 2013.