Vortex Kaibab HD 20x56 Binocular

Model no: KAI-5603

Not exportable outside of the USA. See Export Policy

This product is no longer available

Not exportable outside of the USA. See Export Policy

Vortex Kaibab HD 20x56 Binocular

Vortex Kaibab 20x56 HD was designed for long-time observation at extreme distances. High density low dispersion glass provides clarity at long ranges. Objective 56 mm lenses allow Kaibab HD to be used in cloudy weather or late time of the day. For durability and shock resistance, the Vortex Kaibab HD is covered in rubber armor.

Vortex Kaibab HD 20x56 Binocular description


APO System Apochromatic optical system combines with HD glass to provide unmatched color sharpness.
HD Lens Elements Premium HD (High Density) extra-low dispersion glass delivers the ultimate in resolution and color fidelity, resulting in High Definition images.
XRPlus 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.

Technical Specifications

Magnification 20 x
Objective Lens Diameter   56 mm
Eye Relief 15 mm
Exit Pupil 2.8 mm
Linear Field of View 168 feet/1000 yards
Angular Field of View 3.2 degrees
Close Focus 23 feet
Interpupillary Distance 60-76 mm
Height 7.7 inches
Width 5.7 inches
Weight 43.5 ounces

Questions on Vortex Kaibab HD 20x56 Binocular

No questions asked yet

Ask Your Own Question

Your name will be displayed on site if the question is public
Your email will not be displayed on site even if the question is public
Write Your Own Review
You're reviewing:Vortex Kaibab HD 20x56 Binocular
Your Rating