FeaturesStandard:Eye distance:18cmCaliber:40mmExit pupil diameter :5mmNear focal distance:5mm Magnification: 8xPrism Glass Material :BAK4Focus System: center focus，Coating: Green FilmField of view: 298m/1000mPrism system: RoofColor :BlackMaterial: Metal/rubberWeight: 15gIncluding: 1?��telescope