Kowa 8×42 BD II XD Wide-Angle Binoculars

Description

Delivering a class-leading 8.2-degree actual field angle, the Kowa 8×42 BD II XD Wide-Angle Binoculars spreads an expansive 429-foot view at 1000 yards. The 5.25mm exit pupil and 17mm eye relief provide fast, forgiving sight alignment. Such extreme panoramic width inevitably introduces minor field curvature near the extreme outer edges.

Dual XD extra-low dispersion objectives suppress secondary spectrum chromatic fringing, feeding phase-corrected Schmidt-Pechan prisms treated with C3 high-reflectance dielectric mirror coatings. The magnesium alloy chassis is encased in dark green rubber, measuring 5.5 by 5 by 2 inches and weighing 22.5 oz (638 g). Nitrogen purged and sealed against moisture, it features an internal center focus dial tracking down to 5.9 feet (1.8 m), a right-eye diopter ring, and multi-stop twist-up eyecups.

Key Features of Kowa 8×42 BD II XD Wide-Angle Binoculars

Designed for woodland naturalists and hunters tracking fast-moving wildlife through dense canopy brush. The 429-foot field of view lets you locate birds instantly, while the bright 5.25mm exit pupil keeps targets clear during twilight hours.

• 8x magnification paired with 42mm objective lenses yielding a 5.25mm exit pupil
• Phase-corrected Schmidt-Pechan roof prisms with C3 dielectric mirror layers
• Dual Prominar XD extra-low dispersion optical elements controlling color fringing
• Massive 429 ft field of view at 1000 yd (8.2-degree actual angle)
• 17mm eye relief with tactile multi-stop twist-up eyecups
• Short 5.9-foot close focus distance for near-range viewing
• Nitrogen gas purged magnesium alloy body with protective rubber armor
• Lightweight 22.5 oz frame with front tripod adapter compatibility

Prominar XD Glass & Wide-Angle Geometry

The dual XD glass elements eliminate chromatic aberration along high-contrast tree branches. The optical path delivers high light transmission and rich color saturation. Because the 8.2-degree field is pushed so wide, minor peripheral astigmatism appears near the field stop, though the central sweet spot remains razor sharp.

Magnesium Body & Smooth Gearing Dynamics

The lightweight magnesium frame reduces fatigue during all-day surveys. The internal center focus wheel glides with grease-damped resistance that stays consistent in sub-freezing weather, while the textured green armor provides a secure, non-slip grip when handling with wet gloves.

• Internal focus wheel turns smoothly without mechanical backlash or deadband
• O-ring sealed nitrogen chambers eliminate internal moisture condensation during sudden storms
• Twist-up eyecups lock securely in place to prevent accidental collapse under eye contact

Kowa Prominar Warranty & Included Gear

Kowa covers this optic with their comprehensive Prominar Lifetime Warranty against defects in materials and craftsmanship. The complete factory package contains the Kowa 8×42 BD II XD Wide-Angle Binoculars, wide padded neck strap, soft carry case, objective lens covers, eyepiece rainguard, and an instruction guide.