Most thermal cameras offer a multi-field-of-view or step-zoom. For instance, if it is necessary to see farther out, the camera operator must step between the fields of view, causing a temporary loss of the target image. The DefendIR-CZ has a true, continuous optical zoom, which gives the user the ability to change fields of vision while keeping the target in focus at all times, adding an additional layer of security.

In addition, the camera features a 30mm to 90mm lens.