Optical vibration compensation infrared lens with 35 to 105mm focal length. When a telephoto lens is used for long distance security monitoring, it is affected by external vibrations (from the mounting location, buildings, wind pressure, etc.), resulting in camera-shake that inevitably undermines the quality of the image being captured. Tamron 15-45mm F/1.4 and 35-105mm F/1.0 lenses are equipped with optical zoom and optical image stabilization systems, allowing the highest quality images to be captured. These features, because they are completely different from digital zoom and digital image stabilization, are capable of utilizing all pixel data effectively, causing no deterioration of the image quality under all settings, meaning no pixel roughness.

Equipped with these systems, a long wavelength infrared camera can capture the optimum image of an object within a given horizontal and vertical field of view and shooting distance. For example, when a camera is used for monitoring a suspected intruder, it is able to capture a precise image, resulting in reduced information errors, making the system highly reliable.

Two types of zoom lenses are available: medium-distance monitoring lenses (focal length 15-45mm) and long-distance monitoring lenses (focal length 35-105mm). They are not only useful for changing magnification, but also convenient because a camera can be setup and then adjusted to the necessary field of view. Because the lenses are equipped with stepping motors with electrical controls, optical zooming is possible based on the address information specified on the camera. Electrical or manual optical zooming is also selectable on the camera.