Specifications Model SV406P Power 20x-60x Objective Diameter 80mm Objective Material Extra-Low Dispersion Glass Focal Length 430mm Objective Lens structure 3-Elements / 3Groups Eyepiece Diameter 24mm Barrel Size of Eyepiece 1.25inch Zoom Eyepiece Lens structure 7-Elements / 4Groups Prism Type Porro Prism Prism Glass H-K9L Prism Coating FMC Lens PCS/Groups 10Pieces / 7Groups Real Field of Angle (Degree) 2.1°- 1.1° Apparent Field of View 42°- 66° Field of View (ft/1000yds) 108ft – 60ft Field of View (m/1000m) 36m – 20m Resolution (“) 2.0″ Near Focus 18ft / 5.5m Relative Brightness 16@20x / 1.69@60x Exit Pupil (mm) 4mm-1.33mm Eye Relief (mm) 20mm-18mm Lens Coating Fully Multi Coated Focus System Dual Focus Mechanism Focus Type Internal Porro Prism Nitrogen Filled Yes Water Proof IPX5 Nitrogen Filled Yes Eye Cup Type Twist-up Net Weight 1625g / 3.58lb / 57.32oz Dimension 405x180x120mm The Parameter Comparison of SV406P and SA405 Spotting Scope Model SV406P SA405 SA405 SKU F9355B F9383A F9383B Magnification 20x-60x 20-60X 20-60X Objective Diameter 80mm 85mm 85mm Objective Material Extra-Low Dispersion Glass Extra-Low Dispersion Glass High Definition Glass Focal Length 430mm 482.6mm 482.6mm Eyepiece Diameter 24mm 28mm 28mm Objective Lens structure 3-Elements / 3Groups 3-Elements /2Groups 2-Elements /2Groups Zoom Eyepiece Lens structure 10pieces/7group 7pieces/4group 7pieces/4group Prism Coating FMC FMC FMC Barrel Size of Eyepiece 1.25inch 1.25inch 1.25inch Real Field of Angle (Degree) 2.1°-1.1° 1.92°- 0.93° 1.92°- 0.93° Field of View (ft/1000yds) 108ft-60ft@1000yds 102-48ft@1000yds 102-48ft@1000yds Near Focus 18ft / 5.5m 12m 12m Exit Pupil (mm) 4mm-1.33mm 4－1.35mm 4－1.35mm Eye Relief (mm) 20mm-18mm 19.5-18mm 19.5-18mm Lens Coating Fully multi-coated Fully multi-coated Fully multi-coated Focus System Dual Focus Mechanism Helical Focus Wheel Helical Focus Wheel Nitrogen Filled Yes Yes Yes Waterproof IPX7 IPX6 IPX6 Eye Cup Type Twist-up Twist-up Twist-up Dimension 405x180x120mm 430x103x173mm 430x103x173mm Armor material Rubber Rubber Rubber Field of View (m/1000m) 36m – 20m 34m -16m 34m -16m Resolution (“) 2.0″ Relative Brightness 16@20x / 1.69@60x Apparent Field of View 42°- 66° 45° 45° Type of Prism BaK-4 K9 K9 Color Army Green Army Green Army Green Net Weight 1625g / 3.58lb / 57.32oz 2100g 2020g Features First Svbony ED Spotting Scope, which has Extra-Low Dispersion to maintain color authenticity. Its eyepiece is removable and can be replaced with a 1.25-inch astronomical eyepiece. Dual focus makes you to focus more precisely and give you the most perfect experience. It is nitrogen-filled, completely waterproof and fogproof. You could enjoy hunting, bird watching interest even in wet weather. BAK4 prism and FMC (Fully Multi-Coated) optics, increasing light transmission through the optical path to deliver crisp, high contrast images It has a 80mm caliber to give you a clear and bright field of vision.
