SPECIFICATION Magnification 10x Front Lens Diameter, mm 25 Field of View (FOV) @ 1000yds, ft. 273 Objective Angle of View, degrees 5. 2° Close Focus Distance, ft. 10. 5 Diopter Compensation, dots 3. 5 Eye Relief, mm 15. 0 Exit Pupil, mm 2. 5 Twilight Factor 15. 8 Adjustable Interpapillary Distance, mm 34–74 Automatic Diopter Compensation (ADC) Yes Eyepieces for Eyeglass Wearers Yes Focusing Internal focusing via central focusing device Number of Lens Elements (Each Side) 6, all with HDC coating Prism System Roof prism with phase correcting coating P40 and High Lux-System (HLS) Water tightness Watertight to a depth of 5 m/16. 5 ft. Coating Quadra Housing Aluminum, nitrogen-filled Dimensions (W x H x D), in 4. 4" x 4. 4" x 1. 5" Weight, oz. 9. 4