Theia’s 4K compatible varifocal telephoto lens can be used for long distance surveillance and license plate recognition. It is designed for sensors such as 1/2.5″ 5MP and 1/2.3″ 4K resolution. The excellent IR correction allows Day/Night operation without needing to refocus when switching to IR illumination. The lens can be adjusted for focal lengths from 9-40mm for unobtrusive security.