NIGHT WITNESS Compact and lightweight Night Witness monocular is designed for low light observation and photo/video surveillance. It is the most versatile night vision system for law enforcement and rescue teams, professional photographers, coast guard, etc. Sturdy water- and corrosion-proof body made from light aluminum and titanium alloys guarantees long trouble-free operation. Replaceable humidity collector filled with desiccant substantially improves monocular reliability in rapidly changing environment. Night Witness is distinguished by its handy modular design along with an intelligent control system. It is offered in two versions: 1.25x and 5x. This monocular can be enhanted with professional lenses made by Sigma, Canon, Nikon and other manufacturers. It can be also attached to CCTV, photo and video cameras by the means of professional optical adapters. Unique design effectively protects image intensifier tube from bright light. Intelligent TTL sensor measures the illumination level directly on photocathode surface and shuts off power faster and more reliably than the autogating mechanism of many other expensive image intensifier tubes.         Specifications Magnification Focal length / F number Field of view Focus range Image intensifier tube Lens mount Eyepiece Focal length Eye relie Exit pupil Diopter adjustment range Power supply Battery life at 20°C Operational / Storage temperature range Relative humidity Dimensions Weight with battery Tripod thread   1x 5x 25mm / F1.4 100 mm / F1.7 40° 10.5° 3 m - infinity 18 mm, Gen. 2+ or Gen. 3, 45 – 72 lp/mm C-mount, 1” – 32 TPI 20 mm 16 mm 7 mm -4 … +4 1xAA or external power supply 3.5-15 V, 50 mA 10 hours (5 hours with infrared illuminator) -40°C ...+55°C / -40°C ... +65°C up to 98% 104x70x45 mm 220x70x60 mm 550 g 390 g standard 1/4”, 20 TPI