ZEISS V8 NA 2.8-20x56 German design, engineering, manufacturing, and ultimate craftsmanship come to life in these sophisticated V8 scopes with a highly advantageous 8x zoom ratio. The distinctly innovative optics utilize exotic glass types, including SCHOTT glass, featuring multiple FL (fluoride) and HT (high-transmission) lens elements. The optical system yields an impressively bright image, with a guaranteed light transmission value of 92%. An immediate advantage of these designs is the extra-large eye box that allows for faster target acquisition. The V8 2.8-20x56 NA opens up more hunting opportunities in lower light conditions and at longer distances. Enjoy vivid and highly contrasting images, with exceptional resolution. The scope represents a perfect balance between high magnification and low-light performance. Specifications Magnification: 2.8 – 20 ×Effective lens diameter: 27.5 – 56 mmLight transmission: 92%Exit pupil diameter: 9.9 – 2.8 mmTwilight factor: 7.9 – 33Field of view at 100 m (yds): 15.5 – 2.1 m (46 – 6 ft)Objective viewing angle: 8.8° – 1.2° Diopter adjustment range: -3.5 | +2 dptEye relief: 92 mm (3.6")Parallax setting: 50 m – 8 (54 yds – 8)Vertical adjustment range at 100 m: 72 MOA | 210 cmLateral adjustment range at 100 m: 46.5 MOA | 135 cmAdjustment per click at 100 m: 0.25 MOACentre tube diameter: 30 mmEyepiece tube diameter: 46 mmObjective tube diameter: 62 mmFeaturesLotuTec: YesNitrogen filled: YesWater resistance: 400 mbarPhysicalOperating temperature: -25°C | +50°C (-13°F | +122°F)Length: 350 mm (13.8")Weight (without inner rail): 795 g (28.0 oz)Weight (with inner rail): 830 g (29.3 oz) Zeiss Sport Optics Like New Zeiss V8 North American 2.8-20x56mm 30mm .25 MOA Plex #60 Riflescope w/Ballistic Stop 522133-9960-040