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Kowa BD42-10XD Full Size 10x42 PROMINAR XD Lens - Top Seller
Kowa BD42-10XD Full Size 10x42 PROMINAR XD Lens

Kowa BD42-10XD Full Size 10x42 PROMINAR XD Lens - Top Seller

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Your Price: CAD695.76
Retail Price:CAD699.00

Your Savings:CAD3.24(0%)

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Part Number:BD42-10XD

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Product Highlights

  • Schmidt-Pechan Roof Prism Design
  • XD Extra-Low Dispersion (ED) Glass
  • C3-Coated Phase-Corrected Prisms
  • Fully Mult-Ccoated Optics
  • Wide 62° Apparent Angle of View
  • Lightweight Magnesium Chassis
  • Textured Center Focus Wheel
  • Nitrogen-Filled, Water and Fogproof
  • Tripod Mountable with Optional Adapter
  • Twist-Up Rubber Eyecups


The 10x42 BD42-10XD PROMINAR Binocular from Kowa combines precision glass and prisms, with optical and prism coatings to produce a binocular that performs well in all light conditions with true color representation. Extra-low dispersion XD glass elements reduce chromatic aberration and image distortion at the edges of the field of view. The lenses are fully multi-coated to maximize the amount of light coming into the optical tubes. The roof prisms are phase-corrected to increase the resolution and contrast, while the C3 coatings reflect more that 99% of the light moving through them. This combination of glass, prisms, and coatings produce high-contrast images that are bright and crisp, with true-color transmission.

The magnesium-alloy housing is light and durable, and the rubber armoring on the exterior provides a sure grip and protection from impacts. The optical tubes are nitrogen-filled and o-ring sealed to be waterproof, and resistant to internal fogging when moving through extreme temperature changes or environmental conditions. Its center focus wheel is textured for easy handling in cold and wet conditions, even while wearing gloves.

Optical Performance
  • 10x magnification
  • 42mm objective lenses
  • Phase-corrected Schmidt-Pechan roof prism design
  • Highly-reflective C3 prism coatings for bright images with true color representation
  • Kowa's XD extra-low dispersion (ED) glass reduces chromatic aberration
  • Fully multicoated optics
  • Wide 62° apparent angle of view
  • 325-foot field of view at 1000 yards
Use and Handling
  • Textured center focus wheel for easy focusing in cold and wet conditions, or with gloves
  • Kowa's KR coatings protect external lens surfaces from dirt, oils, residue, and make the lenses easy to clean
  • Twist-up eyecups for custom eye relief with or without eye-wear
  • Right-eye dioptric adjustment for fine focusing capabilities
  • 18 eye relief
  • 4.2 mm exit pupil
Construction Details
  • Lightweight and durable magnesium alloy housing
  • Thixomolded injection-mold manufacture produces a reliable and durable housing
  • Nitrogen-filled and o-ring sealed for water and fogproof performance
  • Weight: 23-ounces

Prism Type Roof
Magnification 10x
Objective Lens Diameter 42mm
Angle of View 6.2° (actual)
Field-of-View 325.3' @ 1000 yd / 108.0 m @ 1000 m
Minimum Focus Distance 5.0' / 1.52 m
Exit Pupil Diameter 4.2 mm
Eye Relief 18.0 mm
Interpupillary Adjustment 57.0 - 75.0 mm / 2.2 - 3.0"
Dioptric Correction Not specified by manufacturer
Focus Type Center
Tripod Mount Yes (Adapter Optional)
Dimensions 5.20 x 4.96 x 2.01" / 13.2 x 12.6 x 5.1 cm
Weight 23.1 oz / 654.89 g

Package Weight 2.15 lb
Box Dimensions (LxWxH) 8.0 x 6.0 x 3.0"

In the Box
Kowa 10x42 BD42-10XD PROMINAR Binocular
  • Soft Carry Case
  • Padded Neck Strap
  • Eyepiece Cover
  • 2 x Objective Lens Covers
  • Limited Lifetime Warranty



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