BNV 2.5x42 Pro Russian Night Vision Rubber Armoured Binoculars with built-in infrared illuminator. So you want the very best in NV Gen1 binoculars….? Then stop looking because you have arrived….. these state of the art binoculars will have you seeing where you could never see before. Fitted with the very best Gen 1 image intensifier tubes that we have seen. The fully-coated precision ground lenses will deliver the highest resolution with little distortion. Proven in battle, the military has provided us with comments supporting our faith in this product. Comments have been made of the non-narrowing field of vision coupled with a distinct and contrasting picture. These binoculars are suited to any climate and are protected from moisture and dust. They are light weight and ergonomically designed so they are a pleasure to use. These versatile NV binoculars are ideal for a wide variety of professional and recreational uses. Boating, Wildlife Observation, Search and Rescue, Hunting and Security. SPECIFICATIONS: Image tube GEN I. Magnification 2.5x. Angle of view 15o. Observation range 600 m. Resolution 30 lines/mm. Objective lens diameter 42 mm. Field of view 31 m. Focusing limit 4 m. Diopter adjustments -5/+5 Supply voltage 3v (2xAA). IR illuminator built-in. Temperature -30 to +30oC. Overall dimensions 165x155x75mm Weight 0.8 kg.