The Prostaff spotting scope easily crosses wide-open ranges, moving in on grizzly in the valley and moose among the pine ... all through the power of a 20-60x zoom eyepiece. Of course you could actually move in as close as 20 feet, but you just might feel safer at a distance! No matter where you roam, count on the light-grasping ability of the 82mm Prostaff for bright details at any time of the day.