Features: - Brighter Images - Porro K9 prisms - Ruby Red filtering coating - Autofocus Technical Specifications: - Magnification: 7X - Lens Diameter: 50mm - Angle of Vision: 6.2o - Exit Pupil: 7,1mm - Eye Relief: 10mm - Focus: Auto-focus - Prism Type: Porro K9 - Field of View: 133@1000m - Lens Coating: Fully coated - Housing: Rubber - Weight: 750gr - Dimensions: 6,5x19x20cm - to use, Shock Resistant