The COSMICAR Pentax 2.2mm C Mount F1.0 CCTV Camera Lens is a high-quality zoom lens designed for CCTV cameras. With a maximum aperture of f/1, this lens allows for excellent low-light performance and sharp image quality. The manual focus feature gives users precise control over their images, while the C mount makes it easy to install on a variety of cameras. The short focal length of 2.2mm makes it ideal for capturing wide-angle shots with stunning clarity and detail.