This Fujian 35mm F1.7 CCTV NEX Lens is a high-quality lens designed for surveillance cameras. It has a maximum aperture of f/1, which allows for clear and detailed footage. The lens is compatible with C mount and has a focal length of 35mm. The brand, Fujian, is known for its reliable and durable products. This lens is made in China and is perfect for those who want to enhance their security cameras' performance. It comes with 2 macro rings, making it easy to install and use. Capture high-quality footage with this Fujian CCTV lens.