Leupold 12x50 BX-1 McKenzie Binocular

Leupold 12x50 BX-1 McKenzie Binocular

Leupold 12x50 BX-1 McKenzie Binocular

B&H # LE12X50BX1M MFR # 173790
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Product Highlights

  • Phase-Corrected BAK4 Roof Prisms
  • Fully Coated Optics
  • Nitrogen-Filled, Water and Fogproof
  • Rubber Armored Aluminum Housing
  • Closed Bridge Configuration
  • Large Center Focusing Wheel
  • Tripod Mountable with Optional Adapter
  • Twist-Up Eyecups
  • Long Eye Relief, Wide Exit Pupil
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Leupold 173790 overview

  • 1Description

The Leupold 12x50 BX-1 McKenzie Binoculars feature phase-corrected BAK4 roof prisms and anti-reflection fully coated optics that work together to produce a versatile and capable optic with clear, high-contrast images and accurate color rendition. The 50mm objective lenses gather ample light, and the wide exit pupil delivers a bright view in challenging conditions such as the early morning and late evening.

Complementing the optical performance are construction details that make these binoculars durable and comfortable to use. The lightweight and durable aluminum alloy chassis is protected by a gray rubberized armor that is textured for a non-slip grip. The optical tubes are nitrogen-filled and O-ring sealed to be waterproof and resistant to internal fogging when moving through extreme changes in temperatures or environmental conditions. A right-eye diopter adjustment and twist-up eyecups allow the binoculars to be customized to most people's needs and can be comfortably used with or without eyewear. For long-term glassing, the McKenzie is tripod mountable with an optional adapter.

Optical Performance
  • Powerful 12x magnification reveals distant details
  • 50mm objective lenses improve light-gathering ability versus smaller objectives while helping to maintain a compact form factor
  • Roof prism optical path ensures a low-profile design that is easy to hold
  • BAK4 prisms deliver a round exit pupil and a crisp and clear image with limited edge distortion
  • Phase-corrected prism coatings reduce internal interference to improve contrast, clarity, and resolution
  • Anti-reflection fully coated lenses maximize light transmission for bright and clear images with accurate color rendition
  • 242' field of view at 1000 yards
Use and Handling
  • Closed bridge configuration offers a stable platform for the internal focusing mechanism
  • Large center focus wheel is easy to manipulate in cold or wet conditions, or when wearing gloves
  • Right-eye diopter adjustment enables users to compensate for optical prescription for sharper views
  • Twist-up eyecups for comfortable use with or without eyewear
  • Tripod mountable with optional adapter for hands-free use to eliminate vibration and arm fatigue
  • Long 13.7mm eye relief reduces eye strain for easier and more comfortable viewing
  • 4.2mm exit pupil
Construction Details
  • Lightweight and durable aluminum alloy chassis
  • Nitrogen-filled and O-ring sealed to be waterproof and resistant to internal fogging when moving through extreme changes in temperature and environmental conditions
  • Shadow Gray rubberized armoring exterior protects against bumps and impacts
  • Ergonomically placed textured palm pads provide a non-slip, stable, and comfortable grip
  • Weight: 28.5 oz
UPC: 030317017514

Leupold 173790 specs

Prism Type Roof
Magnification 12x
Objective Lens Diameter 50 mm
Angle of View 4.6° (Actual)
Field of View 242' @ 1000 yd / 80.344 m @ 1000 m
Exit Pupil Diameter 4.2 mm
Eye Relief 13.7 mm
Focus Type Center
Tripod Mount Yes (Adapter Optional)
Dimensions Length: 6.7" / 17.0 cm
Weight 28.5 oz / 808.0 g
Packaging Infoyqfavvdwdzeqdfdfbcvfacy
Package Weight 2.5 lb
Box Dimensions (LxWxH) 9.0 x 6.7 x 3.6"

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