Features
  • Fully Multi-Coated Lenses
  • Ergonomic design
  • Lightweight
  • Twist - up eyecup

Featuring a high 10x magnification and a Bak-4 prism system the highest quality prism system on the market the Firefield® 10x42 Binocular delivers brilliant light, pure visuals and vivid landscapes. Nitrogen-filled and water resistant, this binocular is built for reliability; ensuring users get the most out of every use in the field. The exterior is coated with a rubberized armor for a solid grip and protection against minor impact.

  • Magnification & Objective Diameter - 10x42mm
  • Type of Prism (type) - Bak-4
  • Prism Coating, (yes/no) - yes
  • Lens Coating - Fully multi-coatedCL/FC/BMC/FBMC
  • Focus System (Cent. / Ind. / Fix) - Central
  • Focusing Lens (Eye. / Obj. / Int.) - Internal
  • Exit Pupil Diameter - 4.2mm
  • Eye Relief - 14mm
  • Field of View - 5.8angle
  • Field of View - 305ft/1,000yds
  • Field of View - 102m/1,000m
  • Minimum Focusing Distance - 5/16.4ft/m
  • Relative Brightness - 17.64
  • Twilight Index - 20.5
  • Resolution - 7.5''
  • Diopter System (location) - eyepiece
  • Diopter Range - -4 to +9
  • Interpupillary Distance (in/mm) - 54-72
  • Nitrogen Purged - no yes/no
  • Fog Proof - noyes/no
  • IP Rating (waterproof) - IPX4 (weatherproof)
  • Eyecup system - twist up
  • Operating Temperature - 32 to 120F
  • Dimensions mm - 152mm/154mm/51mmmm
  • Weight (oz) - 20.5oz


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