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Kowa BD-XD 12x56mm Prominar Roof Prism Binocular

by Kowa
Original price $599.00 - Original price $599.00
Original price
$599.00 - $599.00
Current price $599.00
In stock

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BD-XD 12x56mm Prominar Roof Prism Binocular by Kowa Optics

Discover the Kowa BD-XD 12x56mm Prominar Roof Prism Binocular - unleash advanced XD optics in a compact, tough design.

They are perfect for birdwatching, hiking, camping, and other outdoor activities.

The binocular feature XD lenses and a bright, wide field of view for sharp images without chromatic aberration.

They are also multi-coated for a bright and clear field of view.

Close focus performance is exceptional, making them ideal for close-up viewing of birds, flowers, and other small objects. 

Waterproof and nitrogen-filled, making them suitable for even the harshest of outdoor environments.

The large, bright 56mm objective lenses increase light transmission even further for excellent low light performance.



  • 12x Magnification: The 12x magnification of the Kowa BD-XD 12x56mm Prominar Roof Prism Binocular provides powerful zoom capabilities, enabling highly detailed and close-up views of distant subjects, ideal for activities like astronomy, wildlife observation, and long-range viewing.
  • 56mm Objective Lens: The 56mm objective lens allows for excellent light-gathering ability, ensuring brighter and clearer images in low-light environments such as dusk or dawn, making it particularly advantageous for activities like astronomy, wildlife observation, and long-distance viewing. Additionally, the larger lens diameter contributes to a wider field of view and enhanced image resolution.
  • Kowa Prominar XD Lenses: The Kowa XD lenses are made with eXtra-low dispersion (XD) glass, which has similar characteristics to fluorite crystal. This type of glass is very effective at reducing chromatic aberration, which is a type of optical distortion that causes color fringing around objects. 
  • Schmidt-Pechan Roof Prism Lens and C³ Coating: These prisms are highly reflective and transmit more light than other types of prisms, resulting in brighter and sharper images. The C coating on the prisms further enhances the reflectivity, increasing it to 99% or higher across the entire visible spectrum. This ensures accurate color reproduction, even in low-light conditions.
  • Kowa's KR Coating: Kowa's KR coating protects the lenses from dirt and other foreign residues. This coating is also water-resistant and fog-proof, making the binoculars suitable for use in a variety of conditions.
  • All-Surface Multi-Coating: The all-surface multi-coating on the lenses further enhances the image quality by providing a precise color definition and a brighter, sharper image.
  • Waterproof and Fogproof: The housing of Kowa Prominar binocular is waterproof to JIS Protection Class 7 and filled with dry nitrogen gas. This ensures that the binoculars are fog-proof and can withstand even the most extreme weather conditions.
  • Twist-Up Eyecups: The twist-up eyecups allow for customization, making it easy to view even when wearing eyeglasses.


What's Included:

✓ Kowa BD-XD 12x56mm Prominar Roof Prism Binocular

✓ Case

✓ Eyepiece caps

✓ Objective lens caps

✓ Shoulder Strap

✓ Instruction manual

✓ Limited 10 Year Warranty



Minimum Focusing Distance: 3.0m
Eye Relief: 16.0mm
Magnification: 12x
Objective Lens Effective Diameter: 56mm
Weight: 1050g
Real Field of View (degrees): 5.5
Exit Pupil Diameter: 4.7mm
Relative Brightness: 22.1
Twilight Factor: 25.9
Field of view at 1000m/yds: 97
Dimensions (Length x Width x Height): 164x148.5x66.5mm

Kowa BD-XD 12x56mm Prominar Roof Prism Binocular - BD56-12XD Product Manual:

Download the Kowa BD-XD 12x56mm Prominar Roof Prism Binocular - BD56-12XD Product Manual



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