Theia's 4K compatible varifocal telephoto lens can be used for long distance surveillance and license plate recognition.  This motorized version of theSL940 lens includes focus and zoom motors, IR cut filter, and photo interrupter limit switches for the focus and zoom ring positions.  It is designed for sensors such as 1/2.5" 5MP and 1/2.3" 4K resolution.  This compact lens is designed to be built into dome and bullet cameras.  Motors allow the user to remotely zoom and focus for optimal image quality without any physical interaction with the lens.  

View the example telephoto images

Similar to Theia's other lenses, the TL936 is a high quality lens designed to allow the installer to take full advantage of the high resolution of 4K resolution, HD, and multi megapixel cameras. The excellent IR correction allows this lens to be used with IR illumination without the need for refocusing the camera when switching to night mode.  

Contact Theia to discuss details about different configurations.  The drawing and CAD model below are examples of only one of the available configurations.  

TL936 drawing (TL936A R6)