The DM-TP-660AVF security camera lens provides a high zoom angle using a precise crafted vari-focal length of 6mm to 60mm, which gives you a great flexibility for your security installations. With the added feature of a DC auto-iris, this lens can automatically adjust to the perfect setting for your lighting condition. The DM-TP-660AVF provides a F1.4 bright aperture that helps you to get a better and cleaner picture quality.