Leupold BX-4 Pro Guide HD 12x50mm Roof First Lite Fusion

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Get powerful magnification in a lightweight, high-performance package. The 12x50mm BX®-4 Pro Guide™ HD binos make sure you can spot a trophy at almost any distance. Built around our Twilight Max HD Light Management System, these binoculars boast un-paralleled brightness, edge-to-edge clarity, and advanced glare management technology; helping you see a clearer image in the harshest lightning conditions. Their ergonomic open-bridge design is comfortable for extended glassing sessions and delivers key weight savings for those long backcountry adventures.


  • Waterproof, fogproof, and guaranteed to perform for life
  • Delivers a perfectly round exit pupil with virtually no edge distortion and a crisp, clear image.
  • Our ergonomic design ensures our products are slim, lightweight, and fit well in your hands no matter what size they are.
  • Our fully multi-coated lens system ensures maximum brightness for clarity, contrast, and color fidelity.
  • High-definition, calcium-fluoride lenses ensure incredible clarity at all magnification levels.
  • Open bridge, roof prism design is extremely lightweight and ergonomic.
  • Phase coated roof prisms significantly increase resolution for a sharp sight picture from edge-to-edge of the visual field.
  • See more in less light with Twilight Max HD Light Management System
    • Adds up to 30 extra minutes of shooting light
    • Eliminates 90% more glare-producing stray light than competitors
    • Premium high definition edge-to-edge lens clarity
  • Features twist-up eyecups and generous eye relief for comfortable extended viewing.


  • Interpupillary Distance Range: 58-74
  • Weight (oz): 28.5
  • Linear FOV (ft/1000 yd) - High: 263
  • Linear FOV (m/1000 m) - High: 88
  • Length (in): 6.6
  • Length (mm): 168
  • Eye Relief (mm) - High: 16
  • Angular FOV (degrees) - High: 5.0
  • Exit Pupil (mm) - High: 3.9
  • Close Focus Distance (ft): 10
  • Close Focus Distance (m): 3


10.00 (in)
8.00 (in)
4.00 (in)