Tangent Theta Inc. Marksman 3-15x50mm 30mm Tube Rifle Scope Gen 2 XR 0.1 Mrad. The optical path has been optimized for unsurpassed image quality allowing the marksman to see minute target detail and to remain in the aim for extended periods without eye fatigue. Specifications for Tangent Theta Inc. Marksman 3-15x50mm 30mm Tube Rifle Scope: Manufacturer: Tangent Theta Inc. Objective Lens Diameter: 50 mm Magnification: 3 - 15 x Tube Diameter: 30 mm Reticle Focal Plane: First Focal Plane (FFP) Exit Pupil: 11.5 - 3.5 mm Illumination Color: Red Finish: Matte Anodized Field of View Linear: 12.8 - 2.8 m at 100 m Field of View Angle: 7.3 - 1.6 degrees Eye Relief: 90 mm Diopter Adjustment Range: -3 - 2.5 dpt Color: Black Weight: 786 g Length: 351 mm Parallax: 50 m to Infinity Illumination Type: LED Battery Type: Stand Alone Lithium Width: 84 mm Height: 69 mm Brightness Settings: 11 Water Resistance Level: Waterproof Water Resistant Mark: 10 m Shockproof: Yes Magnification Type: Variable Gun Type: Rifle Features of Tangent Theta Inc. TT315 M-Series 3-15x50mm 30mm Tube Rifle Scope: Mechanical windage direction indicator Eleven reticle illumination settings Side parallax adjustment Non-translating knobs with elevation zero-stop Double-turn elevation with revolution and windage direction indicator Lockable rapid adjusting diopter Package Contents: Tangent Theta Inc. Marksman 3-15x50mm 30mm Tube Rifle Scope Tenebraex Lens Covers / Ard Tangent Theta Inc. 800102-0001: Marksman 3-15x50mm 30mm Tube Rifle Scope Gen 2 XR 0.1 Mrad