Vortex Diamondback 10x28 HD Binoculars

The Diamondback HD renders views with minimal chromatic aberration, exceptional color fidelity, edge-to-edge sharpness, and optimal light transmission through the use of high definition glass, an index-matched lens configuration, XR Plus lens coatings, and dielectric-coated, phase-correcting roof prisms. Minimum focus is a birding-friendly 6 feet. The lenses are protected from scratches, oil, and dust by ArmorTek exterior lens coating.

The housing is argon filled and sealed with O-rings to ensure reliable and durable protection against dust, debris, fog, and water. The binoculars are rubber armored to make them nonslip and offer durable protection. They are equipped with a large focusing knob that is easy to use even while wearing gloves. Naturally contoured to perfectly fit your hands, promoting comfort, and eliminating user fatigue, the Diamondback HD binoculars include a winning combination of features.Optical Performance

·Roof prism design

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·10x magnification

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·28mm objective lenses

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·Fully multi-coated lenses increase transmission, clarity, and brightness

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·Dielectric-coated, phase-correcting roof prisms improve true color, contrast, and transmission

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·273' linear field of view at 1000 yards

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·6' close focus distance

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·Exit pupil: 2.8mm

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·Eye Relief: 16mm

·Use and Handling

·Short-hinge bridge cuts weight and exposes more surface for handling

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·Adjustable interpupillary distance: 55-72mm

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·Oversized knurled center focusing wheel

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·Textured diopter ring on right eyepiece

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·Twist-up soft tapered rubber eyecups

·Construction Details

·Protective rubber armor provides a slip-resistant grip

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·O-ring sealed and argon-filled to be waterproof and resistant to internal fogging when moving through extreme temperatures and environmental conditions

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·Scratch-resistant ArmorTek exterior lens coatings repel oils and corrosive materials from lenses

·Prism Type  RoofMagnification  10xObjective Lens Diameter  28 mmAngle of View  5.1° (Actual)Field of View  273' @ 1000 yd / 90.64 m @ 1000 mMinimum Focus Distance  6' / 1.83 mExit Pupil Diameter  2.8 mmEye Relief  16 mmInterpupillary Adjustment  55 to 72 mm / 2.2 to 2.8"Diopter Adjustment  YesFocus Type  CenterFogproof  Yes, Argon FilledWater Resistance  WaterproofDimensions  4.6 x 4.5" / 11.68 x 11.43 cmWeight  13.5 oz / 383 g