Swarovski Optik NL Pure Green Binoculars 10x42mm

Specifications:COLORGreenOBJECTIVEMagnification: 10xEffective objective lens diameter: 42 mmExit pupil diameter: 4.2 mmExit pupil distance: 18 mmField of view at m/1,000 m / ft/1,000 yds: 399 ft/1000 ydsField of view degrees: 7.6 AdegField of view with eye glasses (degrees): 7.6 AdegField of view apparent: 70 AdegShortest focusing distance: 6.6 ftDiopter adjustment: A 4 dptDiopter correction at ?: 5 dptLight transmission: 91 %Pupil distance: 2.2-2.9 inTwilight factor acc. to ISO 14132-1: 20.5SIZE & WEIGHTLenght in mm.: 6.2 inWidth in mm.:5.1 inHeight in mm.: 2.8 inWeight: 30 ozENVIRONMENT & CONDITIONSFunctional temperature: -13 to +131 AdegFStorage temperature: -22 to +158 AdegFSubmersion tightness: 13 ft / 4 m water depth (inert gas filling)