Shuttle Shot System for  KJ20x8.2B IRSD, KJ20x8.5B KRSD A, KJ13x6B KRSD, KH20x6.4 KRSD SY14, KH13x4.5 KRSD SY14, KT20x5B KRSD A YJ20x8.5B KRS/IRS, YJ13x6B KRS/IRS The lenses as shown above have a unique “Shuttle Shot Function” which is similar to the “Shuttle Shot for Digital Drive”. Step-1 Memorizing any focal length by Shtl Memory Position Setting Knob hold down the Shtl button and simultaneously turn the shuttle memory position setting knob. Step-2 By pressing “Shuttle Shot button”, zoom position moves to the memorized point at the highest speed. Step-3 By releasing “Shuttle Shot button”, zoom position comes back to the original point at the highest speed. If the full telephoto focal length is the memorized point, this function can also used as a tool to quickly check focus and then zoom back to the original starting point.