NVS 8 Typical Applications : Security Night vision photography Law enforcement Marine navigation Features:   Long observation range (over 2500 m at low light levels) Possibility to use the viewer under extremely low light levels (1x10-3 lux starlight or 1x10-4 lux on a cloudy night) High image quality across the screen Unique fast optics with high light transmission Bright light cut off Automatic protection from lateral or frontal light sources Automatic brightness control with manual override Low power consumption Heavy-duty telescopic tripod Optional bi-ocular eye-piece allows observation with both eyes (this feature reduces magnification by 1.42) Optional camera/video adapter Specifications Image Intensifier Tube Type Optical Magnification, x Field of view, deg Objective lens Angular resolution, arc. sec for ambient illumination 5.10-3 lx Dioptric adjustment Eye relief, mm Exit pupil, mm Reticle scale division, mils Electrical Voltage, V Power supply Batteries life, hours Other Working temperature Relative humidity Dimensions, mm Weight, net / with tripod / gross, kg NC064322 Gen. 2+, 18 mm   9 3.83 204mm, F/1.0, T/1.4 50 ±4 50 4.5 5   3 2XAA batteries Over 80 -40°C to +55°C Up to 98% 400x250x240 12 / 25 / 40