Hawke Sport Optics Nature-Trek 13-39x56mm Compact Spotting Scope w/ Window Mount Green. Specifications for Hawke Sport Optics Nature-Trek 13-39x56mm Compact Spotting Scope w/ Window Mount: Manufacturer: Hawke Sport Optics Color: Green Magnification: 13 - 39 x Objective Lens Diameter: 56 mm Eye Relief: 18 mm Exit Pupil: 1.4 - 4.3 mm Field of View Linear: 81 - 162 ft at 1000 yds Field of View Angle: 3.1 degrees Optical Coating: Fully Multi-Coated Scope Body Type: Angled Close Focus: 13.1 ft Weather Resistance: Yes Water Resistance Level: Waterproof Length: 9.6 in Weight: 33.3 oz Finish: Matte Condition: New Fabric/Material: Rubber Features of Hawke Sport Optics Nature-Trek 13-39x56mm Compact Spotting Scope w/ Window Mount Twist-up rubber eye cup Fully Multi-Coated optics Tripod attachment point Rubber coated magnification ring Package Contents: Hawke Sport Optics Nature-Trek 13-39x56mm Compact Spotting Scope w/ Window Mount Stay-on Objective Lens Cap Eye-Piece Lens Caps Window Mount Hawke Sport Optics 55211: Nature-Trek 13-39x56mm Compact Spotting Scope w/ Window Mount Green