Vanguard 8x42 Endeavor ED IV Binocular

Vanguard 8x42 Endeavor ED IV Binocular

Vanguard 8x42 Endeavor ED IV Binocular

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Product Highlights

  • HOYA Extra-Low Dispersion (ED) Glass
  • Phase-Corrected SK-15 Roof Prisms
  • Advanced MultiGuard Lens Coating System
  • Short 5.9' Close Focus Distance
  • Open-Bridge/Dual-Hinge Configuration
  • Durable Magnesium-Alloy Housing
  • Textured Center Focus Wheel
  • Nitrogen-Filled, Water and Fogproof
  • Tripod Mountable with Optional Adapter
  • Click-Stop Twist-Up Eyecups
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Magnification: 8x


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  • 1Description

Building on the success of their earlier iterations, the Vanguard Optics 8x42 Endeavor ED IV Binocular gets upgraded with HOYA extra-low dispersion (ED) glass, phase-corrected SK-15 roof prisms, and their advanced MultiGuard optical coatings to improve light transmission, color rendition, clarity, and contrast; while eliminating chromatic aberration. These updated technologies and materials work together to produce an immersive observational experience on the trail, at the range, in the stadium, or sightseeing around town. To pick out feather and fauna details, the binocular boasts an impressive 5.9' close focus distance.

An open-bridge/dual-hinge design helps to reduce weight without sacrificing strength, and provides a large surface area to improve grip strength and security. Textured rubber armoring offers protection from drops and impacts, while further improving the grip and comfort in the hand. Designed for durability, the lightweight magnesium-alloy housing is nitrogen-filled and O-ring sealed to be waterproof, and resistant to internal fogging when moving through extreme temperature changes and environmental conditions. The Endeavor ED IV's provide the performance and comfort birders, hunters, and outdoor enthusiasts require for long observation sessions in all weather.

Optical Performance
  • 8x magnification
  • 42mm objective lens diameter
  • Phase-corrected prisms provides improved light reflection, high-contrast, and true color fidelity
  • SK-15 prisms have a higher refractive index than BK7 and BAK4, with a lower dispersion than BAK4
  • HOYA extra-low dispersion (ED) lenses virtually eliminates chromatic aberration for true color transmission across the entire field of view
  • Anti-reflection Advanced MultiGuard fully multi-coated optics improves light transmission for brighter high-contrast images with accurate color rendition
  • 377' field of view at 1000 yards
  • Short 5.9' minimum focus distance
Use and Handling
  • Open-bridge/Dual-hinge design
  • Large knurled center focus wheel is easy to manipulate even when wearing gloves
  • 56-74mm interpupillary adjustment range
  • ±4 center locking dioptric adjustment
  • Three-stage click-stop twist-up eyecups for comfortable use with or without eyewear
  • Tripod mountable with optional adapter
  • Exceptionally long 19mm eye relief
  • Wide 5.25mm exit pupil completely covers fully dilated pupils in low-light to provide a full-frame view without vignetting
Construction Details
  • Bridge design reduces weight and provides a more comfortable and secure grip by allowing user's hands to wrap completely around the optical tubes
  • Lightweight and durable magnesium-alloy chassis
  • Nitrogen-filled and O-ring sealed to be waterproof, and resistant to internal fogging when moving through extreme temperature changes and environmental conditions
  • Textured rubberized armor provides a slip-resistant grip in cold and wet weather
  • Flip-down tethered objective lens covers
UPC: 026196348009
Prism Type Roof
Magnification 8x
Objective Lens Diameter 42mm
Angle of View 7.2° (actual)
Field of View 378.0' @ 1000 yd / 126.0 m @ 1000 m
Minimum Focus Distance 5.9' / 1.8 m
Exit Pupil Diameter 5.25 mm
Eye Relief 19.0 mm
Interpupillary Adjustment 56.0 - 74.0 mm / 2.2 - 2.9"
Dioptric Correction ±4
Focus Type Center
Tripod Mount Yes (Adapter Optional)
Dimensions 5.9 x 5.1" / 15.0 x 12.9 cm
Weight 27.7 oz / 785 g
Packaging Info
Package Weight 3.0 lb
Box Dimensions (LxWxH) 9.3 x 6.8 x 3.6"
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