Product Description Product Info for AstroScope Night Vision Variable Gain Adapter Pair The Night Vision Variable Gain Adapter Pair from AstroScope is designed to be used with a Nikon Digital SLR Camera. The AstroScope provides your camera with the ability to produce high resolution full-frame images under adverse lighting conditions. The rugged and compact design makes it ideal for demanding applications. Fitted with a high-performance 3rd generation image intensifier, the AstroScope significantly enhances your camera's low-light capabilities. AstroScope 914993 Specs Intensifier Tube 3rd Generation Construction Epoxy-coated aluminum Power Source Two 1.5V "AA" batteries Dimensions 2.3 x 4.0 x 12" / 58 x 102 x 305 mm Weight 1.10 lb / 499 g Packaging Info Package Weight 3.3 lb Box Dimensions (LxWxH) 16.8 x 8.7 x 6.4"