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Delta Optical Discovery 10-22x50 Zoom Binoculars The Delta Optical Discovery series of binoculars features a durable construction with a solid aluminum and rubber-coated body. The lenses used in Discovery binoculars are coated with effective multi-layer anti-reflective coatings. Wide eyecups and large eyepiece lens diameters make every observation a pleasure. The Discovery 10-22x50 zoom binoculars allow for smooth adjustment of magnification from 10x to 22x. This is a highly versatile model. The maximum magnification of 22x allows for observing objects at very close range and in great detail. Technical data:Magnification: 10-22xObjective lens diameter: 50 mmObjective lens material: glassAnti-reflective lens coatings: MCStwilight efficiency: 22.4-33.2Relative brightness: 5.3-25.0Exit pupil diameter: 2.3-5.0 mmEye relief: at 10x magnification: 19 mmAngular field of view: at 10x magnification: 3.8 °Linear field of view at 1000 m: at 10x magnification: 66 mFocus adjustment: outer centralMinimum focusing distance: at 10x magnification: 10x: 8 mInterpupillary distance adjustment: 56-72 mmDiopter correction: -4/+8Prism type: PorroPrism material: BK7 glassWaterproof: noNitrogen filling: noTripod mount: ¼" adapterOwn weight: 868 gWeight with packaging: 1135 gDimensions: 178 x 195 x 65 mmThe set includes binoculars, lens cleaning material, strap for the binocular case, binocular strap, binocular case, lens caps and eyepiece caps.
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