Achieving near military specifications for amplified light scopes, the Marshall 140mm CCTV F1.0 lens provides low-light, long-distance monitoring at a fraction of the cost. This groundbreaking ultra low-light camera lens provides excellent imaging in near zero ambient light conditions. The F1.0 aperture lens offers discreet, affordable and high quality video surveillance for commercial and industrial security, law enforcement, military, and all industries where monitoring in low-light situations is necessary.