VORTEX Kaibab 18x56 HD Binoculars KAI-5618


VORTEX Kaibab 18x56 HD Binoculars (KAI-5618)

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  • VORTEX Kaibab 18x56 HD Binoculars (KAI-5618)
  • VORTEX Kaibab 18x56 HD Binoculars (KAI-5618)
  • VORTEX Kaibab 18x56 HD Binoculars (KAI-5618)
  • VORTEX Kaibab 18x56 HD Binoculars (KAI-5618)
Free Standard Delivery
FREE Standard Delivery
30-Day Easy Returns
30-Day Easy Returns
Secure Ordering
Secure Ordering
Size Chart


Features of VORTEX Kaibab 18x56 HD Binoculars KAI-5618

  • Multi-Position Eyecups
  • Center Focus Wheel
  • Locking Diopter
  • APO System for unmatched color sharpness
  • HD Lens Elements
  • XR Plus Fully Multi-Coated Lens
  • Dielectric Prism Coatings
  • Phase Correction
  • Waterproof and Fogproof
  • ArmorTek protects exterior lenses from scratches, oil and dirt

Product Info for VORTEX Kaibab 18x56 HD Binoculars KAI-5618

The VORTEX Kaibab HD 18x56 HD Binoculars (KAI-5618) are the ultimate long-distance western-hunting binoculars. When serious patience and superior optics are required to locate trophy animals at extreme distances, the Kaibab HD delivers the 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. Ultracomfortable twist-up eyecups are perfect for long glassing sessions. Visually tear apart open landscapes in pursuit of tough-to-locate trophy big game with the Kaibab HD.


APO System: Apochromatic optical system combines with HD glass to provide unmatched color sharpness.

HD Lens Elements: Optimized optical system delivers impressive resolution, cuts chromatic aberration and provides excellent color fidelity, edge-to-edge sharpness and light transmission - resulting in High Definition views.

XR Plus Fully Multi-Coated: Premium proprietary coatings deliver the highest level of light transmission with multiple anti-reflective coatings on all air-to-glass surfaces for maximum brightness.

Dielectric Prism Coatings: Multi-layer prism coatings provide bright, clear, color-accurate images.

Plasma Tech: Cutting edge 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.

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

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

ArmorTek: 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.


Multi-Position Eyecups: Twist up and down to precise, intermediate settings to maximize custom fit for comfortable viewing with or without eyeglasses.

Center Focus Wheel: Adjusts the focus of both binocular barrels at the same time.

Locking Diopter: 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.

GritrOutdoors is an authorized Vortex dealer

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Size Chart/Specs

Magnification 18x
Objective Lens Diameter, mm 56
Field of View @1000 yds, ft 194
Eye Relief, mm 16.4
Exit Pupil, mm 3.1
Close Focus, ft 23
Interpupillary Distance, mm 60-76
Dimensions (H x W), in 7.7" x 5.7"
Weight, oz 43.5
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Additional Information

Kaibab HD
Objective Size:
Prism Type:
Product Type:
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