Magnification -10X, Prism Type-Porro, Prism Glass Material-Borosilicate, Prism Glass Coating-Si Ngle Coating, Lens Coating-Single Coated, Field Of View @ 1000 Metre 112 Meters 6 4 Deg Approx. (Brand:Ni Kon Make Or Equivalent ) [ Warranty Period: 12 Months After The Date Of Delivery ] ]