The Vortex Impact 850 Rangefinder is a compact model that is easy to operate with 2 buttons. With the 6x magnification, subjects from a distance are clearly visible. Thanks to the large range of 10 to 777 meters, it is monocular suitable for hunting and safari. A deer or wild boar can be detected up to a maximum distance of 356 meters. You put the rangefinder in different modes. When you want to set off your weapon on your target with the aid of the odometer, you use the LOS mode. With the scan mode you measure the distance to moving subjects, for example animals or cars. You have a field of view of 60 degrees.