Bosch LTC 3664/40 2.8~11mm Varifocal Lens - IR Corrected DC-iris CS-Mount F.01U.508.085

Bosch LTC-3664/40 2.8~11mm Varifocal Lens With the introduction of true day/night cameras, CCTV cameras have become more versatile - and now lenses must match the wide range of light conditions covered by those cameras. (Infrared) corrected lenses provide fully adjusted and sharp focused images in daylight and at nigh when used in conjunction with IR illuminators. This makes IR lenses the best choice for high performance true day/night cameras. The IR range includes 1/3-inch and 1/2-inch format lenses. The 1/3-inch lenses are used exclusively for 1/3-inch type cameras. The high design standards of the 1/2-inch lenses make them a perfect match for both 1/3-inch and 1/2-inch type cameras. When used with 1/3-inch type cameras, the 1/2-inch lenses provide a more "telephoto" effect. For auto