How am i able to aim when using the Prowl? The Prowl has 2 concentration controls, a diopter as well as a wheel with the entrance of the machine. Use the main focus wheel at the front to provide the display screen into concentrate and utilize the diopter to help https://head-mounted-night-vision95285.blogdiloz.com/27755493/a-secret-weapon-for-monocular-with-night-vision