Kowa 10x42 BD II XD Wide-Angle Binoculars

Key Features

• Extra-Low Dispersion PROMINAR Glass
• Phase-Corrected Schmidt-Pechan Prisms
• Anti-Reflection Fully Multi-Coated
• Oil-Resistant KR Exterior Lens Coatings
• Ultrawide 72° Angle of View
• Short Close Focus Distance, under 6'
• Nitrogen Filled, Waterproof & Fogproof
• Closed Bridge Configuration
• Armored Magnesium Alloy Chassis
• Twist-Up Multi-Position Rubber Eyecups

With a magnification-objective lens configuration favored by outdoor enthusiasts and outfitted with an ultrawide field of view, the Kowa 10x42 BD II XD Wide-Angle Binoculars produce bright high-contrast images with true-to-life color and crisp clarity even when observing from long distances.

To deliver their performance, Kowa binoculars employ complementary technologies, including the use of proprietary PROMINAR extra-low-dispersion fluorite glass, anti-reflection fully multi-coated optics, and highly reflective C3 and phase-correcting prism coatings that work together to produce crisp, clear, and bright high-contrast images with accurate color rendition across the entire spectrum. Added to this performance is a short close-focus distance, an ultra-wide angle of view, and a comfortable eye relief, which produce an immersive observational experience for any user. The expansive field of view also reduces the need to move the head very much for a more comfortable viewing experience while virtually eliminating the distracting hand shake common with high-power optics.

Designed for extensive outdoor use, the lightweight magnesium alloy chassis is wrapped in a protective rubber armor with a slip-resistant textured grip to provide secure handling in cold and wet conditions. To ensure a compact and highly packable form factor, Kowa utilizes Schmidt-Pechan prisms that allow for slimmer optical tubes but deliver the performance of conventional roof prisms. The optical tubes are nitrogen filled and O-ring sealed to be waterproof and resistant to internal fogging when moving through extreme temperature or humidity changes.

Optical Performance

• High 10x magnification enables detailed observations of distant subjects like animals, athletes, and architectural details
• 42mm objective lenses deliver the light-gathering capability required for extended use during the pre-dawn and late dusk hours
• Schmidt-Pechan prism design corrects the view while allowing for thinner optical tubes versus the more common Abbe-Koenig design
• PROMINAR XD extra-low dispersion glass reduces chromatic aberration, which causes halos and fringing, for improved color rendition and contrast
• Proprietary PROMINAR lens glass is made of chemically stable artificial fluorite crystal that is free of impurities, so it will not fluoresce in UV light or have a tint that can impede accurate color fidelity
• Anti-reflection fully multi-coated optics improve light transmission, color rendition, clarity, and contrast
• Phase-correcting prism coatings eliminate internal light diffraction to improve clarity and contrast
• C3 prism coatings improve internal light transmission to higher than 99% across the entire visible spectrum to improve color rendition, clarity, and contrast
• Short close focus distance of just under 6 feet enables users to make detailed observations of small subjects like bugs and insects or flora and fauna
• Ultra-wide 72° apparent angle of view helps to minimize the appearance of the distracting hand shake often associated with high-power optics while offering an immersive observational experience
• Spacious 378' field of view at 1000 yards
• Use and Handling
• Closed-bridge configuration provides a solid and stable platform for the internal focusing mechanism
• Textured center focusing wheel is easy to manipulate, even in cold and wet conditions or when wearing gloves
• Right-eye dioptric correction allows the user to fine-tune the focusing to their individual eyesight—even if they wear corrective lenses
• Integrated 1/4"-20 threaded adapter socket on front of bridge hinge allows the optic to be tripod mounted with an optional adapter
• Twist-up multi-position rubber eyecups for comfortable use and correct eye relief, with or without eyewear
• Comfortable 16.5mm eye relief reduces eyestrain and improves overall viewing comfort
• 4.2mm exit pupil will cover most pupils as they open and dilate in low light

Construction Details

• Prism design allows for thinner optical tubes, contributing to the overall compact form factor and providing a more comfortable feel in the hand
• Lightweight and durable magnesium alloy chassis reduces weight without sacrificing strength and stability
• Nitrogen filled and O-ring sealed to be waterproof and resistant to internal fogging when moving through extreme temperature changes or environmental conditions
• Protective rubber armor provides a slip-resistant grip
• Oil-resistant KR exterior lens coatings make it easy for dirt, sap, and oil to be cleaned off without smudges or residue
• Light 22.5-ounce weight