1 Year Olympus India Warranty 10X Magnification 50 mm Objective Lens Diameter 12 mm Eye Relief 6 metre Closest Focusing Distance Monolayer Optical Coating Sure-Grip Rubber Coated Exteriors UV Protection 6.5 Degree Apparent Field of View Aspherical Optical Elements Porro Prism Central Focus Knob Built-In Dioptre Correction