Samsung Techwin offers a unique, wide selection of varifocal lenses with the following focal lengths : 2.9~8.5mm, 3.5~8mm, 2.8~10mm, 5~50mm. With a convenient setting control, the lenses allow users to adjust zoom amount to exactly what they want within the lens' range of field, so in case cameras are relocated, there is no need for purchase of a new lens. Samsung Techwin's wide variety of varifocal lenses provide a perfect solution for excellent ease of use and cost savings.