Vector Optics Paragon 3-15x50 Scope 30mm Monotube Super Sharp Clear by Using Germany Glass, 1/10 MIL Adjustment, With Honeycomb Sunshade & Tactical Heavy Duty Mount Ring,Long Eye Relief, 30mm Monotube Heavy Duty, Red Illumination, Side Focus Min at 25 Yards, Tactical Turrets with Lock Feature Magnification: 3-15x Objective Lens Dia: 50mm Ocular Lens Dia: 38mm (1.5 inch) Ocular Length: 52mm (2.0 inch) Exit Pupil: 16.7-3.3 mm Length (include sunshade):330mm (13.0 Inch) Weight (net):690g (24.3 Ounce) Eye Relief :> 100mm (>4.0 Inch) Field of View (ft@100yds):31.5-10.9 feet Num of Lens: 12 Elevation Range: 35 MIL Windage Range: 35 MIL Reticle: VPA-2 etched glass Tube Dia: 30mm Monotube Distance between objective lens part and middle turret: 53mm (2.1 inch) Length of middle turret part: 45mm (1.8 inch) Distance between middle turret parts to power ring: 50mm (2.0 inch) Optical Coating: Fully-multi diamond coated by using Germany Schott glass Side wheel parallax: min at 25 yards, 50, 100, 200, 400 and infinite Stepless red illumination system Shock proof, water proof and fog proof (Nitrogen purged) High quality aluminum alloy in durable MIL-spec style black matte finish Feature 1/10 MIL direct finger windage and elevation turrets adjustments Turret lock feature: press down to lock without click movement Fast focus eyepiece at ocular lens adjustment (diopter compensation -2.0dpr to +1.5dpr) 30mm tactical picatinny ring, lens caps and honeycomb sunshade