How am i able to concentration whilst utilizing the Prowl? The Prowl has 2 focus controls, a diopter and also a wheel with the entrance from the unit. Use the focus wheel within the front to bring the monitor into target and utilize the diopter that can help your eye https://monocularwithnightvision31841.blogunteer.com/27273657/the-best-side-of-night-vision-monocular