Simon has contributed to notable publications online and teaches novices the complex side of optics through his intensive library of optics guides. Optimum general performance is at 1x and after that electronic magnification for 2x and 4x. I seldom went into 4x since it does get grainy. Raise your counts https://jaidentzeff.yomoblog.com/34403628/the-best-side-of-thermal-and-night-vision-binoculars