Tamron's line of near IR lenses are designed to complement today's Day/Night cameras. Tamron's IR lenses are designed to work under both visible and IR light ensuring quality images from broad daylight to low-light conditions where IR light is present. Tamron's aspherical vari-focals offer a broad selection of focal ranges, while the IR mono-focal lenses (2.2 mm F1.2, 2.8 mm F1.2, 4 mm F1.2, 6 mm F1.2 and 8 mm F1.2), the only ones available on the market today, give installers a low-cost solution fo r Day/Night imaging.