Nikon 10×42 Monarch HG Binoculars

Description

Featuring a Field Flattener optical system, the Nikon 10×42 Monarch HG Binoculars delivers a broad 362-foot field of view at 1000 yards (6.9-degree actual). The 4.2mm exit pupil and 17mm eye relief accommodate spectacles comfortably. Hand tremors at ten-power magnification become apparent during prolonged one-handed glassing, requiring a two-handed grip on windy ridgelines.

Extra-low dispersion (ED) glass pairs with phase-corrected BaK-4 roof prisms coated in dielectric reflective layers and scratch-resistant exterior coatings. The magnesium alloy chassis is sheathed in textured black rubber, measuring 5.7 by 5.2 inches at 24.0 oz (680.4 g). Submersible to 16.4 feet (5 m) and nitrogen purged, it incorporates a central focus wheel tracking to 6.6 feet (2 m), a locking diopter, and twist-up eyecups.

Key Features of Nikon 10×42 Monarch HG Binoculars

A flagship ten-power field optic designed for demanding birders, hunters, and naturalists who require sharp edge-to-edge optical resolution in an all-weather chassis. The Field Flattener lens system maintains crisp focus across the wide 6.9-degree view.

• 10x magnification with 42mm objective lenses producing a 4.2mm exit pupil
• Field Flattener optical system delivering flat-field edge-to-edge resolution
• Extra-low dispersion (ED) optical glass elements eliminating chromatic fringing
• Class-leading 362 ft field of view at 1000 yd (6.9-degree actual angle)
• 17mm eye relief with multi-stop twist-up rubber eyecups
• Short 6.6-foot close focus distance suited for butterfly and floral observation
• Submersible waterproof and nitrogen-purged magnesium alloy frame (24.0 oz)
• Locking right-eye diopter ring and scratch-resistant exterior lens coatings

Field Flattener Optics & ED Dispersion Control

Nikon’s Field Flattener lenses correct astigmatism and field curvature, producing razor-sharp focus right to the circular field stop. ED glass elements eliminate purple halos along high-contrast tree branches, while dielectric multi-layer prism coatings reflect over 99 percent of light across the visible spectrum for natural color saturation.

Magnesium Frame & Locking Diopter Mechanics

At just 24 ounces, this full-sized binocular balances comfortably in hand with textured rubber panels that provide a non-slip grip in wet weather. The central focus wheel operates with smooth, backlash-free mechanical resistance, and the locking right-eye diopter ring prevents focal calibration shifts during rough pack transport.

• Smooth central focus dial provides backlash-free adjustment in cold weather
• Locking diopter ring prevents accidental setting drift when walking through brush
• Nitrogen-purged housing withstands complete water submersion down to 16.4 feet

Nikon Lifetime Warranty & In-Box 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 10×42 Monarch HG Binoculars, semi-hard carry case, padded neck strap, objective lens covers, ocular rainguard, and an instruction manual.