The Z8i riflescope completely redefines performance with its 8x zoom and outstanding optics. Its optimum detail recognition is impressive, based on high magnification, uncompromising image definition across the whole field of view, and exceptional viewing comfort facilitating rapid target acquisition. The slim 30-mm (1.2 in) central tube blends seamlessly with any hunting firearm. The perfectly ergonomic illumination unit and large operating features make it quick and reliable to handle.Approaching DistanceEven at 28x magnification, the Z8i 3.5-28×50 P impresses with its extraordinarily high detail rendition. This makes it ideal for long-range shots. The slim, powerful rifle scope weighs just 665 g (23.5 oz) at a length of 380 mm (15 in), making it the ideal companion for physically demanding hunts.The illuminated Z8i 3.5 28×50 P is ideal for accurate sighting-in even at long range. Its high-precision long-range optics mean you are perfectly equipped to see so much more. The classic plex style 4A-I reticle will make target acquisition fast, efficient, and accurate.FeaturesOutstanding Optical PerformanceLight & Compact DesignExtremely PreciseSWAROLIGHT – Automatic shut-on and shut-off with inclination sensor for illuminated reticles, optimized electronics for higher battery life.4A-I Reticle – The classic german plex style 4A reticle with illumination, perfect for fast and accurate target acquisitionSubtension Dimensions Program – The free subtension dimensions program allows you to quickly obtain all the precise subtension dimensions for your reticle for all SWAROVSKI OPTIK rifle scopes. These values can be calculated not only for all optional magnifications but also for different distances. All the calculated subtension dimensions are given in imperial or metric units, as well as in MOA and MIL units, and can be printed out afterwards. Full details may be found here at SUBTENSIONS.SWAROVSKIOPTIK.COMSpecificationsMagnification: 3.5-28xEffective objective lens diameter (mm): 28.5-50Exit pupil diameter (mm): 8.1-1.8Exit pupil distance (mm) (Eye relief): 95Field of view (ft/100 yds / m/100 m): 36.3-4.5 / 12.1-1.5Field of view (degrees): 6.9-0.9Field of view, apparent (degrees): 24Dioptric compensation (dpt): -3 to 2Light transmission (%): 93Twilight factor acc. to ISO 14132-1: 9.9-37.4Impact point corr. per click (in/100 yds / mm/100 m): 0.36 / 10Max. elevation / windage adjustment range (in/100 yds / m/100 m): 50.4/25.2 / 1.4/0.7Parallax correction (yds / m): 55- / 50-Length (in / mm): 15 / 381Weight (oz / g): 23.5 / 665Central tube diameter (in / mm): 1.2 / 30Functional temperature: -4 F to 131 F (-20 C / 55 C)Storage temperature: -22 F to 158 F (-30 C / 70 C)Submersion tightness: 13 ft / 4 m water depth (inert gas filling)Illumination UnitBrightness levels: Twilight: 0 – 32 / Day: 33 – 64Operating time (h): Twilight Factor at medium brightness: 1,400 Daylight Factor at medium brightness: 180