Kowa BD II 10x42 XD Binoculars

The Kowa BD II 10x42 XD Binoculars (product 47032170086707) deliver 10x magnification through a 42mm objective lens. That pairing gives you a 5.25mm exit pupil and a field of view of 126m at 1000m genuinely wide for a 10x42. The 7.2-degree field of view is class-leading at this magnification making fast target acquisition straightforward whether you're watching birds or scanning open ground.

The optical heart of these binoculars is Kowa's XD glass high-grade ED lenses crafted with fluorite crystal. Fluorite crystal eliminates colour blur completely delivering sharp images with accurate natural colour across all light conditions. Kowa's KR coating sits on the external optics to repel dirt and foreign residue. The result is bright clean views with detail right into the corners of the image.

The body is a magnesium alloy chassis produced through a sophisticated moulding process giving metal-grade strength at reduced weight just 645g. Rubber armouring wraps the chassis for a secure grip and added durability. The binoculars are fully waterproof and dry nitrogen filled to prevent fogging. Twist-up eyecups suit glasses wearers and the large aluminium focus wheel is easy to reach quickly.

A 10-year manufacturer warranty backs the build quality. Sharp optics, wide field of view, lightweight magnesium body and proven KR and XD coatings make these a serious choice for birding and wildlife watching.

The 10x42 format gives a 4.2mm exit pupil solid for daylight and usable at dusk. Kowa's XD lenses use fluorite crystal which has lower refractive dispersion than standard ED glass cutting chromatic aberration more effectively. This means colour fringing is eliminated rather than just reduced. The KR coating on external lenses repels dirt and maintains light transmission. At 7.2 degrees the field of view is wide for 10x magnification making it easier to track moving subjects. Nitrogen filling prevents internal condensation in cold or wet conditions.

The chassis is magnesium alloy produced through a precision moulding process giving structural strength at low weight. Rubber armouring wraps the body for grip and impact resistance. The lenses use Kowa XD fluorite crystal ED glass. External optics carry Kowa's KR protective coating. Total weight is 645g.

Use a soft lens cloth to clean the optics never use solvents. The KR coating helps repel dirt but wipe gently when needed. Store in a case away from moisture and heat. Check the hinge tension and eyecups regularly. The 10-year warranty depends on normal careful use avoid drops and harsh chemicals.