MIL-SPEC lenses have very low defect rate
A line of MIL-SPEC lenses provides a higher life expectancy than regular commercial-grade lenses, with a very low defect rate. In producing a lens or lens system for military use, the company carefully considers its resistance to vibration, shock, temperature, and water ingress, in addition to ensuring high reliability and optimal performance.
Resolve Optics
Chesham, U.K.