Magnification: 8 x - Effective Lens Diameter: 32 mm - Exit Pupil Diameter: 4 mm - Twilight Factors: 16 - Field of View at 1000 yd: 405 ft - Subjective Viewing Angle: 60 - Close Focus in Ft: 4.9 ft - Diopter Adjustment Range: +4 -4 dpt - PrismSystem: Schmidt-Pechan - Water Resistance: 100 mbar - Functional Temperature in F: 5 +140 F - Length in Inch: 4.9 inch - Width in Inch at an eye width of 65 mm: 4.4 inch - Weight in Use in oz: 17.9 oz