Vanguard 16-48x65mm Waterproof Spotting Scope with Straight Eyepiece (Green) 16-48x65mm scope with advanced optical system with Bak4 prisms and fully multi-coated lenses 100% waterproof and fogproof Large ocular and 19mm long eye relief with straight eyepiece Rubber armor for shock resistance Field of view: 105-52 ft/1,000 yards, view angle 2.0-1.0 degrees, near focus 14.8-16.4 feet