Taking innovation to the next level the SVSS1050x60 will set your sights to greater distances with superior clarity. Offering a 34mm main body tube enhanced travel allotment locking turrets and Sightron's unique patent pending F.A.S.T. Focus system are all components pushing the limits of no boundaries. F.A.S.T. Sightron's patent pending F.A.S.T. (Fine Adjustment Sight Tuner) focusing system offers the shooter precise focal adjustments to see further more clearly. Two dial adjustments offering a coarse focal adjustment and a fine focal adjustment for parallax correction. Putting detail to function above the rest take aim knowing that your target just got four times clearer. - Specifications for SVSS 10-50X60 Riflescope: - Magnification: Range 10 - 50 x - Objective Lens Diameter: 60 mm - Tube Diameter: 34 mm - Finish: Matte Black - Included Accessories: Sightron Scope Coat - Adjustment Range: 17.5 Mil Rad - Weight: 41.8 oz - Field of View: Range 9.6 - 2.2 ft at 100 yds - Eye Relief: Range 3.8 - 4.5 in - Length: 16.9 in - Color: Black - Exit pupil: 1.2 mm - Parallax: 13 yds to infinity - Diopter Adjustment Range: Range -2 - 1 dpt - Reticle Focal Plane: Second Plane - Optical Coating: Zact-7 TM 7-Layer - Waterproof: Yes - Fogproof: Yes