On most of standard size binoculars models, there will be a thumb lever or wheel placed conveniently within reach so you can adjust the magnification without changing your grip or taking the eyepieces away from your eyes.
The Edge GS 1x20 is primarily designed for use as night vision goggles (the device can also be mounted on a Head Mount included in the box).Lack of visual magnification (1x) provides the user with ade..