National Geographic 5x50 mm Night Vision Binoculars. Advanced 1st generation night vision beyond compare! Try it yourself and you"ll see why Nation Geographic 5x50 mm Night Vision Binoculars are recommended by those who demand the highest performance generation-1 technology can offer. BIG, light-swallowing 50 mm objective lenses combine with 2 high-quality gen-1 image intensifier tubes and a built-in infrared illuminator to make your target pop in total darkness! A central focusing wheel allows for quick and easy focusing of both objective lenses simultaneously. And Night Owl"s proprietary inter-ocular hinge guarantees you that both optical channels are always centered precisely over each eye. More: 5X magnification; Adjustable focus with central focusing mechanism; Adjustable inter-ocular distance centers the dual optical channels precisely over each eye; 2 high-quality generation-1 image intensifier tubes; Built-in columnated infrared illuminator for use in complete darkness or to improve target recognition in any environment; Objective and ocular lenses constructed of high-quality all-glass optics; Soft-touch rubberized finish; Impact-resistant molded thermoplastic lens housings; Manual focus; Resolution: 35 lp / mm on center; Spectral sensitivity: 400 nm to 900 nm; Diopter adjustment: +4 to -4; Inter-ocular Distance: adjustable from 2.27" to 2.95"; Minimum focal distance: 6.6"; Angular Field of View: 15 degrees; Field of View at 200": 53" wide; Dimensions: 7 13/16" l. x 5 13/16" w. x 3" h. Weight (without batteries): 38.8 oz; Power supply: requires (1) 3-volt Type-123 lithium battery (not included); Battery life: 40 to 80 hours, depending on infrared usage. Order yours today! WARNING: You must be 18 or older to purchase Night Vision. This product cannot be shipped to D.C.; MA; Canada or Puerto Rico. Night Vision cannot be shipped Parcel Post. Please check your State, County and City laws for restrictions before ordering Night Vision. National Geographic 5x50 mm