The distance between your eyes and the binocular eyepiece lenses. If you wear glasses, look for a larger ... prevent water and fog from clogging the chamber. It has a slightly stiff focus knob ...

That combination means one thing: sitting in the cheap seats. If you’re in the same boat, consider the Hands-Free Binocular Glasses, with “2.1x magnification lens optics”, to magnify whatever sporting ...