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The Celestron Oceana 7x50 Binoculars are waterproof and designed marine use. Features 7x magnification porro prism binocular Large 50mm objective lens offers maximum image brightness in low light conditions Backlit illuminated liquid dampened magnetic compass makes this an excellent navigational tool for land or sea Horizontal and vertical etched reticle to help determine the relative size of objects Range finding dial calculates actual object distance or size Four element objective lens for ultra sharp focus across the field of view Multi Coated optics for high contrast views Completely waterproof dry nitrogen charged and sealed with internal O rings to prevent internal fogging so it is unaffected by climate and temperature changes Individual focus allows for precise focus adjustments to allow for differences in the prescription of each eye Excellent depth of field for minimal focus adjustments Objective lens caps conveniently attached for protection Tripod adapter fitting for tripod mounting allows for increased stability Protective rubber covering for ultra firm grip Carrying case included for travel and safe storageSpecificationsOptical Design PorroDiameter 50 mm 1.97 inMagnification 7 xAngular Field of View 7 degLinear Field of View 1000 YDS 366.555 ft 111.73 mExit Pupil 7.1 mm 0.28 inEye Relief 26 mm 1.02 inNear Focus Binoculars 18 ft 5.49 mPrisms BAK 4Optical Coatings Multi CoatedCaps YesStrap YesCarrying Case Padded CanvasWeather Proof WaterproofTripod Adaptable YesWeight 38 oz 1077.28 g
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