This unique instrument uses state-of-the art digital image stabilization to steady hand tremors and platform motions, giving the user steady, calm images that are bright and crisp.Why Stabilization Because All high-power scopes and binoculars magnify not only the image, but all the motions of the user as well. Even with the steadiest of hand, the higher power scopes and binoculars magnify the slightest of movements. This movement can cause eye strain, fatigue, and reduced efficiency, even from a stable viewing platform. If you are moving in an automobile, ship, or aircraft, you will have a compounded problem.Fujinon has solves this problem (again) with the Techno-Stabi. The "internal optics" are isolated, using electric motors and computer sensors to provide image stabilization, so that even on a rocking ship, moving automobile, or jittering aircraft, the image delivered to the eye is rock steady. It works upside down as well as right side up, and from any angle.