NIGHT WITNESS Compact and lightweight Night Witness monocular is designed for lowlight observation and photo/video surveillance. It is the most versatilenight vision system for law enforcement and rescue teams, professional photographers, coast guard, etc. Sturdy water- and corrosion-proof bodymade 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 bySigma, Canon, Nikon and other manufacturers. It can be also attachedto 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 onphotocathode 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, m   Eyepiece Focal length, mm Eye relief, mm Exit pupil, mm Dioptre adjustment range   Mechanical Lens mount Power supply Battery life at 20°C, hours Tripod socket Dimentions, mm Weight with battery, g   Environmental Operational temprature, C Storage temperature, C Relative humidity   Configuration Generation Resolution Night Witness 1x Night Witness 5x 1x 5x 25 mm / F1.4 100mm / F1.7 40° 10.5° 3 - infinity 3 - infinity 20 20 16 16 7 7 -4 ... +4 -4 ... +4 C-mount, 1" - 32 TPI C-mount, 1" - 32 TPI 1xAA or external power supply 3.5-15 V, 50 mA 1xAA or external power supply 3.5-15 V, 50 mA 10 (5 with Infrared Illuminator) 10 (5 with Infrared illuminator) Standard 1/4", 20 TPI Standard 1/4", 20 TPI 104x70x45 220x70x60 390 550 -40° ... +55° -40° ... +55° -40° ... +65° -40° ... +65° Up to 98 % Up to 98 % 18 mm, Gen. 2+ 18 mm, Gen. 2+ 51-64 lp/mm 51-64 lp/mm