Features
  • Internal focusing
  • IP67 waterproof rating
  • 50mm objective lens diameter
  • Twist-up eyecup
  • Tactical monocular
  • Rangefinding reticle
  • Fully multi-coated optics
  • BAK-4 glass prism
  • 10x magnification
  • Roof prism optical system

The Firefield Siege 10x50R is a tactical monocular perfect for viewing targets at long range. With fully multi-coated optics and an IP67 waterproof rating, the Siege 10x50R remains safe from outdoor elements. Featuring internal focusing and a rangefinding reticle, this tactical monocular allows for clear viewing and quick target distance identification. The Firefield Siege Monocular takes advantage of its twist-up eyecup to ensure ease of use for individuals with eyeglasses. The roof prism optical system is made from high-density BAK-4 glass, which eliminates distortion around the edge of the exit pupil when viewing.

  • Body Material - Plastic/rubber
  • Close Focus Distance - 13/4
  • Diopter Range - 0
  • Exit Pupil Diameter - 5.6
  • Eye relief (in/mm) - .6/15.4
  • Eyecup system - Twist-up
  • Field of View (ft/1,000yds) - 367.21
  • Field of View (m/1,000m) - 122
  • Field of View, degree - 7
  • Focusing Lens (Eye. / Obj. / Int.) - Internal
  • Fog Proof - Yes
  • Height (in/mm) - 2.6/66
  • IP Rating (waterproof) - IP67-submersible to 1m/3ft
  • Length (in/mm) - 6.2/157
  • Lens Coating - Fully multi-coated
  • Magnification - 10
  • Objective Lens Diameter - 50mm
  • Operating Temp,F/C - 0 to 120 / -17 to 49
  • Prism Coating, (yes/no) - Yes
  • Relative Brightness - 22.4
  • Resolution - 2.3
  • Twilight Index - 31.4
  • Type of Prism (type) - Roof/BAK4
  • Waterproof/Nitrogen-filled - Yes
  • Weight (oz) - 15.2
  • Width (in/mm) - 2.2/56


you may also like

View All