Hawke Sport Optics Endurance ED 16-48x65mm Spotting Scope HT3700 is a durable, high-clarity spotting scope that will serve you well no matter what you're looking at. This Hawke Optics spotting scope gets its name from the high-quality extra-low dispersion (ED) glass found throughout the scope, which is fully multi-coated to give you unparalleled color fidelity, brightness, and clarity any time of day. The spotting scope is versatile and durable, equipped with full body rotation capability, a sturdy magnesium alloy body, and completely waterproof construction. The Hawke Endurance ED 16-48x65 Extra Low Dispersion Glass Spotting Scope is easy to use, with a dual focus knob, twist-up eyecups for adjustable eye relief, and a twist-out sunshade to eliminate glare. For a spotting scope by Hawke Sport Optics that will withstand the harshest environments, get the Hawke Optics Endurance ED 16-48x65mm Fully Multi-Coated Spotting Scope.