Building on the successful foundation of the award winning Endeavor ED binoculars, Endeavor ED II 10x42 Binocular brings Vanguard Optics to another level. The Endeavor ED II series offers the latest Vanguard optical technology enhancements including premium Japanese HOYA ED (Extra-low Dispersion) glass with edge-to-edge clarity that enhances light transmission. An open-bridge design helps to reduce weight without sacrificing strength, and provides a large surface area to hold. Pebbled rubber armoring helps to give protection from drops and impacts while helping to provide a non-slip grip. Designed for durability, the lightweight magnesium-alloy housing is nitrogen-filled and o-ring sealed for water and fogproof performance, and the 3-stage click-stop twist-up eyecups provide a custom-fit eye relief for use with or without eye-wear.

The 10x42 Endeavor ED II Binocular features Extra-low Dispersion (ED) glass and phase-corrected BaK4 prisms that work together to virtually eliminate chromatic aberration, which produces images with true color fidelity across the entire field of view and enhanced contrast. Complementing the glass and prisms are anti-reflection fully multicoated optics that improves light transmission for bright and clear images, with greater low-light performance

Optical Performance

Use and Handling

Construction Details


  • Featuring Hoya Extra-Low Dispersion (ED) Glass
  • Phase-Corrected Roof Prisms
  • Anti-Reflection Fully Multicoated Optics
  • Ergonomic Open-Bridge Configuration
  • Durable Magnesium-Alloy Housing
  • Textured Center Focus Wheel
  • Nitrogen-Filled, Water and Fogproof
  • Click-Stop Twist-Up Eyecups
  • Pebbled Rubberized Armor
  • Tripod Mountable with Optional Adapter


  • WARRANTYApplicable by national law
    MATERIALMagnesium Alloy
    DIAMETER OF OBJECTIVES42mm
    DIMENSIONS (L X W)154 x 130
    EYE CUP3 stops Twist-out eyecups
    FIELD OF VIEW @1000M114
    FOCUS SYSTEMCenter Focus
    LENS COATINGFully multi-coated
    NEAR FOCUS (M)2
    OCULAR ADJUSTMENT±4
    PHASE COATINGYes
    POWER10
    PRISM TYPEBaK4
    RELATIVE BRIGHTNESS17.6
    TWILIGHT FACTOR20.4
    VIEW ANGLE6.5
    WATERPROOFYes
    WEIGHT (OZ)27.16