NVS 22                             The NVS 22 is a high-resolution night vision add-on attachment that represents the latest developments in tactical night vision weapon sighttechnology. This unit mounts on the same MIL-STD-1913 rail (or its extension) in front of a daytime scope, thus eliminating a need for theboresight adjustment. With NVS 22, switching between day and night modes takes just a few seconds and requires no tools. Wide exit pupil makes this device compatible with most existing daytime riflescopes. NVS 22 has field of view wider than that of most daytime riflescopes, thereforethe unit does not bring any additional limitations during nighttime aiming. NVS 22 is designed without cathadioptric lens to ensure the brightest and sharpest image possible, still it is compact and lightweight. This advanced durable unit is irreplaceable for those, who need round the clock performance.   Product Features: Mounts in front of a daytime riflescope on a Picatinny rail leaving boresight intact Brings no limitations to riflescope’s functionality Takes full advantage of fast optics combined with modern image intensification technology Optimized for sniper rifles Waterproof (IP 54) Equipped with internal focus adjustment mechanism Optional infrared illuminator Specifications Image intensifier tube Tube Resolution Magnification Field of view Objective F number / T number Magnification of day scope, recommended Magnification of day scope, maximum   Mechanical Battery Battery life, hours Dimensions, mm Weight, g   Environmental Operating temperature, C Relative humidity 18 mm, Gen 2+ or 3 54-64 lp/mm 1x 8° 100 mm / F1.6 3-5x 20x     2xAA Over 60 258x80x80 985     -50° ... +55° Up to 98 %