This product Featuring zoom capability which allows a viewer in a fixed location to scan a wide field area, then when an object is spotted, that distant object can be brought into the eyepiece at high magnification to catch all the details at a High Definition contrast. At 90x Magnification and with massive 90mm MULTI Coated Camera Quality Lenses you"re guranteed to enjoy the detailed high contrast view and observe the 90mm difference for the first time. This BARSKA COLORADO Waterproof Spotting scopes will add a new dimension to your viewing pleasure, its 100% Waterproof and Fogproof constructions making this spotters is a great performer in all terrain / weather and climate conditions.