The 10MP 2.8mmm f/1.6 Wide-Angle CS-Mount Manual Iris Lens from Marshall is an ultra-wide lens which features a fixed 2.8mm focal length. Compatible with 10MP sensors with a 1/1.8" image size and a CS mount, the lens is designed to deliver high-quality imagery. With an aperture of f/1.6, the lens allows for clear images in even low light conditions. The lens features manual iris and focus rings with a lock to avoid setting displacement after installation.