Alpen 15-30X50 Spotting Scope

Features Magnification: 15-30x Objective Lens Diameter: 50 mm Focus System: Eyepiece Prism Type: Porro Field of View: 136-ft at 1000-yds low/99-ft at a 1000 yds high Exit Pupil: 3.3-1.7 mm Eye Relief: 20-17 mm Net Weight: 23 oz Multi-coated optics Waterproof and nitrogen filled Powerful zoom eyepieces Durable, padded field carrying case