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Kowa BDII-XD 8x42mm Prominar Roof Prism Wide Angle Binocular

by Kowa
Sold out
Original price $449.00 - Original price $449.00
Original price
$449.00 - $449.00
Current price $449.00
Out of stock

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BDII-XD 8x42mm Prominar Roof Prism Wide Angle Binocular by Kowa Optics

Introducing the Kowa BDII-XD 8x42mm Prominar Binoculars, featuring a leading-edge wide field of view that allows for swift subject location and a more comprehensive observation of your surroundings.

Crafted with high-grade ED (extra-low dispersion) glass, the lenses minimize chromatic aberration, ensuring sharp and clear images from every corner.

With a close focus distance of just 1.8 meters for the 42mm models, the BDII-XD binoculars are ideal for close-up observations of subjects. 

Kowa BDII-XD 8x42mm Prominar Roof Prism Wide Angle Binocular Lifestyle Photo

These binoculars offer affordability without compromising on quality, making them an excellent choice for birdwatchers, hikers, and other outdoor enthusiasts.



  • 8x Magnification: The Kowa BDII-XD 8x42mm Binocular provides a powerful 8x magnification, enabling users to observe distant subjects with enhanced detail and clarity. This feature is particularly advantageous for activities such as bird watching, wildlife observation, or sporting events, where a closer view is essential.
  • 42mm Objective Lens: Equipped with a 42mm objective lens, these binoculars strike a balance between portability and light-gathering capability. The larger objective lens allows for increased light transmission, ensuring clear and bright images in various lighting conditions. 
  • Kowa XD Lenses: Kowa's XD lenses (eXtra-low dispersion) are made with a special type of glass that has similar characteristics to fluorite crystal. This glass helps to reduce chromatic aberration, which is a type of distortion that can cause colors to appear blurry or out of focus. The XD lenses in Kowa binoculars help to produce sharp, clear images with accurate color reproduction.
  • Schmidt-Pechan Roof Prism Lens and C Coating: Kowa binoculars use a Schmidt-Pechan roof prism, which is a type of prism that is known for its high light transmission and image brightness. The C coating on the prisms further enhances light transmission, resulting in even brighter and sharper images.
  • Kowa's KR Coating: Kowa's KR coating is a special type of coating that is applied to the lenses of their binoculars. This coating helps to repel dirt, water, and oil, making it easier to keep the lenses clean. The KR coating also helps to protect the lenses from scratches and other damage.
  • All-Surface Multi-Coating: The lenses in Kowa binoculars are all-surface multi-coated. This means that every surface of the lenses has been coated with a special material that helps to improve light transmission and image brightness. The all-surface multi-coating also helps to reduce glare and reflections, resulting in clearer images.
  • Waterproof and Fogproof: The housing of Kowa binoculars is waterproof and Fogproof. This means that they can be used in wet or humid conditions without the risk of water or fog getting inside and fogging up the lenses. The waterproof and Fogproof housing also makes Kowa binoculars ideal for use in extreme conditions, such as rain, snow, or fog.
  • Twist-Up Eyecups: The eyecups on Kowa binoculars are twist-up, multi-step eyecups. This means that they can be adjusted to provide a comfortable viewing experience for people with different eyeglass prescriptions. The twist-up eyecups also make it easy to view the binoculars without eyeglasses, if desired.

Kowa BDII-XD 8x42mm Prominar Wide Angle XD Binoculars Features Video:


What's Included:

✓ Kowa BDII-XD 8x42mm Prominar Binocular

✓ Rainguard

✓ Objective lens caps

✓ Shoulder Strap

✓ Case

✓ Instruction manual


Magnification: 8x
Objective Lens Effective Diameter: 42mm
Twilight Factor: 18.3
Minimum Focusing Distance: 1.8m
Eye Relief: 17.0mm
Dimensions (Length x Width x Height): 139x128x52.5
Body material: Magnesium alloy
Real Field of View (degrees): 8.2
Field of view at 1000m/yds: 143
Weight: 640g


Kowa BDII-XD 8x42mm Prominar Wide Angle Binocular - BD II XD 42-8 Product Manual:

Download the Kowa BDII-XD 8x42mm Prominar Wide Angle Binocular - BD II XD 42-8 Product Manual

Customer Reviews

Based on 1 review
Jocelyn W.
5 Stars

If bird watching is your hobby then I can seriously recommend this binocular. Easy to hold, quick to focus. The optics deliver amazing images.