Firefield Nightfall Night Vision MonocularDetails: Keep superior nighttime visibility without losing peripheral vision with the Firefield Nightfall 4x50 Night Vision Monocular. Featuring a powerful, built in PULSE IR illuminator, this high quality device produces a crisp, clear image, perfect for use in hunting, security and general observation situations. The Nightfall 4x50 Monocular is used with one eye only, allowing the other eye to maintain optimal vision. A high resolution intensifier