NightStar Digital Night Vision 4x50mm Monocular 15 Degrees Black. These Night Vision Monocular devices from NightStar are equipped with a high-power infrared illuminator so the user can get bright clear images even in near total darkness. NightStar DNV 4x50mm Monocular has an integral video recorder so you can use it for surveillance. The Night Star Illuminated Night Vision Monocular features lightweight durable polymer construction and 4x magnification for medium range observation. Specifications for NightStar 4x50mm Digital Night Vision Monocular: Manufacturer: NightStar Night Vision Generation: 1 System/Lens Resolution: 50 lp/mm Field of View Angle: 15 degrees Diopter Adjustment Range: -5 - 5 dpt Battery Type: CR123A Weight: 500 g Magnification: 4 x Color: Black Objective Lens Diameter: 50 mm Length: 183 mm Eye Relief: 12 mm Exit Pupil: 4 mm Battery Life: 2.5 hours Width: 76 mm Magnification Type: Fixed Height: 60 mm Features of NightStar 4x50mm Digital Illuminated Night Vision Monocular Black NS41450: Digital night vision for day or night use Built-in infrared illuminator Video recording enabled Long distance observation High quality image resolution Package Contents: NightStar 4x50mm Digital Night Vision Monocular Tripod Ready NS41450 NightStar NS41450: Digital Night Vision 4x50mm Monocular Black