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Vortex 18×56 Kaibab HD Binoculars



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SKU: KAI-5618 Categories: , , Tags: ,

Vortex 18×56 Kaibab HD Binoculars

The Vortex 18×56 Kaibab HD Binoculars were designed with superior optics. They deliver premium quality, high magnification optical performance you need to get the job done. Intended to be used with a tripod for extended, comfortable, rock steady viewing.

*Note – Recommended for use with a tripod. Tripod adapter included.

Vortex 18×56 Kaibab HD Binoculars Features

APO System

Index matched lenses correct color across the entire visual spectrum.

HD Lens Elements

Premium extra low dispersion glass delivers the ultimate in resolution and color fidelity, resulting in high definition images.

XR Plus Fully Multi Coated

Ultimate anti-reflective coatings on all air to glass surfaces provide maximum light transmission for peak clarity and the pinnacle of low light performance.

Dielectric Coating

Multi layer prism coatings provide bright, clear, color accurate images.

Plasma Tech

Cutting edge coating application process provides unparalleled coating durability and performance

Phase Correction

Coating on roof prism models enhances resolution and contrast.

Roof Prism

Valued for greater durability and a more compact size.


O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments.


Argon gas purging prevents internal fogging over a wide range of temperatures.


Ultra hard, scratch resistant coating protects exterior lenses from scratches, oil and dirt.

Rubber Armor

Provides a secure, non-slip grip, and durable external protection.

56 mm Lenses

Maximize low light performance.

Adjustable Eyecups

Twist up and down for comfortable viewing with or without eyeglasses.

Center Focus Wheel

Adjusts the focus of both binocular barrels at the same time.


Adjusts for differences in a user’s eyes. Located on right eyepiece.

Tripod Adaptable

Compatible with a tripod adapter, allowing use on a tripod or car window mount.

Included in the Box


Lens cloth

Tethered objective lens covers

Comfort neck strap

Deluxe padded carry case

Uni-Daptor quick release tripod adapter

Product Manual

Parts Diagram


Magnification 18x
Objective Lens Diameter 56 mm
Eye Relief 16.4 mm
Exit Pupil 3.1 mm
Linear Field of View 194 feet/1000 yards
Angular Field of View 3.7 degrees
Close Focus 19.8 feet
Interpupillary Distance 60-76 mm
Height 7.7 inches
Width 5.7 inches
Weight 43.5 oz



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