Nikon 20×56 Monarch 5 Binoculars (Black)

Description

Reaching extreme distances with high-power magnification, the Nikon 20×56 Monarch 5 Binoculars (Black) produces a 173-foot field of view at 1000 yards (3.3-degree actual). The tight 2.8mm exit pupil and 16.4mm eye relief require centered eye alignment. Handholding this 43.6-ounce optic causes heavy image shake, making dedicated tripod stabilization mandatory.

Extra-low dispersion (ED) objective glass feeds phase-corrected BaK-4 roof prisms treated with high-reflectance dielectric mirror coatings and fully multi-coated surfaces. The rubber-armored chassis measures 7.8 by 5.7 by 2.6 inches and weighs 43.6 oz (1.2 kg). Nitrogen purged against internal fogging, it features a central focus wheel tracking down to 16.4 feet (5 m), a right-eye diopter adjuster, multi-stop twist-up eyecups, and front tripod adapter threading.

Key Features of Nikon 20×56 Monarch 5 Binoculars (Black)

Designed for long-range surveillance, western big game scouting, and lunar astronomy where high resolving reach is essential. The large 56mm objective lenses gather critical light, while the ED optical elements maintain clean edge definition across vast distances.

• High-magnification 20x power paired with 56mm objective lenses producing a 2.8mm exit pupil
• Phase-corrected BaK-4 roof prisms with high-reflectivity dielectric mirror layers
• Extra-low dispersion (ED) optical glass elements minimizing chromatic aberration
• 173 ft field of view at 1000 yd (3.3-degree actual angle)
• 16.4mm eye relief with multi-stop twist-up rubber eyecups
• 16.4-foot close focus distance suited for extreme long-range platforms
• Nitrogen gas purged and sealed chassis sheathed in protective black rubber armor
• Heavy 43.6 oz body with front 1/4-20 tripod adapter socket

ED Glass Performance & Long-Distance Optics

Nikon’s ED glass elements effectively curb secondary spectrum chromatic fringing, preserving crisp antler tines and plumage borders against bright skies. Dielectric prism coatings reflect over 99 percent of internal light, though the compact 2.8mm exit pupil requires bright daylight or illuminated celestial targets for reliable identification.

Heavyweight Chassis & Tripod Stabilization

At 43.6 ounces with 20x power, handheld viewing reveals heavy heartbeat tremors; securing the optic to a rigid tripod head yields vibration-free resolution. The central focus wheel operates with smooth mechanical drag, while the textured rubber armoring supplies a slip-free grip in wet conditions.

• Threaded front socket allows direct tripod adapter mounting for vibration-free glassing
• Nitrogen-purged seals prevent internal lens fogging during freezing rain and snow
• Multi-position twist-up eyecups maintain firm spacing without collapsing under eye pressure

Nikon Lifetime Warranty & Inclusions

Nikon backs this optic with their Lifetime Limited Warranty covering optical and mechanical defects, alongside a No-Fault Repair/Replacement Policy. The complete factory package contains the Nikon 20×56 Monarch 5 Binoculars (Black), padded neck strap, protective carry case, tripod adapter, objective lens covers, and an eyepiece rainguard.