Kowa BD III 12x50 XD Binoculars (Kowa, SKU: 138464 / 12804) are roof prism binoculars designed for detailed observation of birds, wildlife, landscapes, and other distant subjects. The 12× magnification is combined with large 50 mm objective lenses providing high light-gathering capability and Kowa XD optics using low-dispersion ED glass. The optical design helps reduce chromatic aberration and preserve natural colour reproduction, while the lightweight magnesium alloy body, waterproof construction, nitrogen filling, and protective KR coating prepare the binoculars for regular use in the field.
• 12× magnification providing high detail when observing distant birds, wildlife, landscapes, and other subjects
• 50 mm objective lenses providing high light-gathering capability and good usability during observation in less favourable lighting conditions
• 4.2 mm exit pupil providing a practical combination of high magnification and 50 mm aperture
• Kowa XD optics using high-grade low-dispersion ED glass, helping reduce chromatic aberration and colour fringing around high-contrast subjects
• high contrast and natural colour reproduction facilitating recognition of fine details in observed subjects
• 5.8° true field of view, corresponding to 101.3 m at a distance of 1000 m
• roof prism optical system allowing a compact and easy-to-carry construction despite the use of 50 mm objective lenses
• protective Kowa KR coating reducing the adhesion of water, dust, grease, and other contaminants to external optical surfaces
• minimum focusing distance of 3.5 m allowing observation also of subjects located at relatively short distances
• 17.5 mm eye relief providing a comfortable eye position during extended observation sessions
• adjustable Twist-Up eyecups allowing the eye position relative to the eyepieces to be adapted
• central focusing wheel allowing rapid image adjustment as the distance to the observed subject changes
• diopter adjustment allowing differences between the user's right and left eye to be compensated
• lightweight and rigid body made from magnesium alloy
• waterproof construction suitable for use in changing outdoor conditions
• nitrogen filling reducing the risk of internal fogging of the optical system
• possibility of mounting on a tripod using a compatible adapter, particularly useful during extended observations at 12× magnification
• weight of 730 g providing a relatively low carrying load for roof prism binoculars with 50 mm objective lenses and 12× magnification
• 12x50 configuration intended primarily for observations requiring higher magnification and precise recognition of detail at long distances
• Kowa BD III 12x50 XD binoculars
• carrying case
• carrying strap
• objective lens caps
• eyepiece caps
• instruction manual
• manufacturer: Kowa
• series: BD III-XD
• model: BD III 12x50 XD
• manufacturer catalogue number: 12804
• EAN: 4580614171953
• optical design: roof prism binoculars
• focusing system: central focusing
• magnification: 12×
• objective lens diameter: 50 mm
• XD optics: low-dispersion ED glass elements
• protective coating: Kowa KR
• exit pupil diameter: 4.2 mm
• eye relief: 17.5 mm
• true field of view: 5.8°
• field of view at 1000 m: 101.3 m
• twilight factor: 24.5
• minimum focusing distance: 3.5 m
• maximum focusing distance: infinity
• eyecup type: adjustable Twist-Up
• body material: magnesium alloy
• weather protection: waterproof construction
• body filling: nitrogen
• tripod mounting capability: yes, using a compatible adapter
• dimensions: 160 × 134 × 57 mm
• weight: 730 g
The combination of 12× magnification, 50 mm objective lenses, XD optics, and a relatively lightweight magnesium body makes the Kowa BD III 12x50 XD well suited to detailed observation of distant subjects, particularly when a larger image scale is important while retaining a portable construction.
