The Ranger Pro 5x42 is an excellent example of the successful application of digital technologies in observation optics. Currently this is the ultimate night vision digital device. The Ranger Pro features impressive 5-power magnification and large viewing range of up to 600 metres. This is due to a highly sensitive CCD array and new Sum Light software technology employed in the Ranger Pro device. The Ranger Pro 5x42 easily competes with the Gen.2 in image sharpness and brightness. The image transmitted to the monochrome LCD display is crisp and sharp across the entire field of view. The device is able to capture effectively the light flux of a wide wave range in conditions of natural night illumination. To conduct observation on a cloudy moonless night, the adjustable IR illuminator can be used. The wave length amounts to 940nm (remote area of the IR range, invisible to the human eye) . The observer is invisible even if the unit is used in the active mode. The built-in video output allows transferring of the image to a monitor or a TV set which facilitates long-time stationary viewing, and video recording to external recording devices.