This high-luminosity rifle scope with a 56 mm objective diameter allows you, thanks to its 25x magnification, to shoot accurately over long distances, even in the poorest light conditions. Field of view (degrees) 4.0-0.8 Field of view, apparent (degrees) 21.1 Dioptric compensation (dpt) -3 to +2 Light transmission (%) 90 Twilight factor acc. to ISO 14132-1 15.5-37.4 Impact point corr. per click (in/100 yds / mm/100 m) 0.26 / 7.2 Max. elevation / windage adjustment range (in/100 yds / m/100 m) 86.4/54 / 2.4/1.5 Impact point corr. per click (MOA) 1/4 Max. elevation / windage adjustment range (MOA) 82/50 Elevation/windage impact point correction per rotation (clicks) 80/72 Option to go below sight-in distance SUBZERO (clicks) 40 Parallax correction (yds / m) 55- / 50- Objective filter thread M 58x0.75 Functional temperature -4 degF to +131 degF (-20 degC / +55 degC) Storage temperature -22 degF to +158 degF (-30 degC / +70 degC) Submersion tightness 13 ft / 4 m water depth (inert gas filling)