This is Premier Series HD ENG Style lens with 2X extender and 16 bit encoders.For use in robotics and 3D applications with Fujinon 3D Synchronous controller or third party controls. 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.