Hawke Sport Optics Frontier ED X Compact 15-35x56mm Spotting Scope Green/Black. Specifications for Hawke Sport Optics Frontier ED X Compact 15-35x56mm Spotting Scope: Manufacturer: Hawke Sport Optics Color: Green/Black Magnification: 15 - 35 x Objective Lens Diameter: 56 mm ED Glass: Yes Close Focus: 13 ft Features of Hawke Sport Optics Frontier ED X Compact 15-35x56mm Spotting Scope Extra-low dispersion (ED) glass. Super wide angle optics. Flat field view. Lanthanum ocular glass. BAK-4 roof prism. Wide band anti-reflective fully multi-coated optical system. Barrel focus ring. Twist-up eye cup. Compatible with Hawke smartphone adapter. 1/4 inch - 20 UNC tripod mounting thread and Arca-Swiss plate. Nitrogen purged - waterproof and fog proof. Package Contents: Hawke Sport Optics Frontier ED X Compact 15-35x56mm Spotting Scope Arca-Swiss Tripod Adapter Stay-On Cover And Lens Covers Hawke Sport Optics 58210: Frontier ED X Compact 15-35x56mm Spotting Scope Green/Black