This i-CS lens features the most recent industry standard in intelligent CS-mount optics. It includes three motors, which enable automatic and remote zoom, focus, and iris opening. Lens i-CS 1/1.8″ 3.9-10 mm F1.5 offers great flexibility to your installation thanks to its open protocol and the ability for the camera to interface with multiple features. The lens is IR-corrected. This means that you don’t need to adjust the camera’s focus when you shift between day and night mode using the IR-cut filter.