NightStar 2x42mm Gen-1 Wide-View Compact Night Vision Monocular 13 Degrees Black. These NightStar Night Vision Monocular feature a detection distance of up to 150 yards for a clear shot even in the darkest of conditions. In addition the NightStar 2x42 Gen-1 Night Vision Monocular has a 13-degree field-of-view for long-distance and wide-range views. The NightStar Wide-View Compact Night Vision Monocular is the perfect accessory for hunting camping boating or any and all outdoor adventures Specifications for NightStar 2x42mm Gen-1 Wide-View Compact Night Vision Monocular: Manufacturer: NightStar Night Vision Generation: 1 System/Lens Resolution: 30 lp/mm Field of View Angle: 13 degrees Diopter Adjustment Range: +4 -4 dpt Magnification: 2 x Color: Black Objective Lens Diameter: 42 mm Eye Relief: 10 mm Image Intensifier Color: Green Phosphor Magnification Type: Fixed Package Contents: NightStar 2x42 Gen-1 Wide-View Compact Night Vision Monocular Black 2HQ-NV-NS41242C NightStar NS41242C: 2x42 Gen-1 Wide-View Compact Night Vision Monocular Black