Night Vision 101: Focus, Diopter, Aperture
In this video we cover three of the most important aspects of basic night vision use: focus, diopter, and aperture. Understanding how to set the diopter properly, and how aperture relates to depth of field comes in handy when using night vision devices.
0:22 Focus
0:45 Aperture
3:24 Lens Cap Demonstration
3:56 Diopter