This Lens that is to be utilized for 3D must match throughout their zoom and focus ranges.This requires very high optical quality and mechanical stability. Fujinon’s new zoom lenses with Precision Servo Controllers meet these requirements by combining the highest quality HD optics and close tolerance mechanical design with precision zoom and focus control servos. The lenses may be used in conjunction with Fujinon’s Synchronous Controller, third party 3D rigs or in 2D, productions with standard applicable Fujinon control accessories.This is Premier Series HD ENG Style telephoto lens with 2X extender and 16 bit encoders.