System 250 Binocular Microscopes

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System 250 Binocular Stereo Zoom Microscopes are an economical option for a wide variety of applications. With a 20mm optical system and single boom stand, these microscopes are best-suited for lighter-duty use inspection applications. Luxo® by UNITRON® offers several of the most popular models through the 72-hour Quick Ship Program.

Standard Specifications

  • 0.65x – 4.5x zoom magnification range controlled by graduated knobs on both sides of the viewing head
  • Magnification range 6.5x-45x
  • High-quality achromat lenses with anti-reflective coatings
  • 150mm working distance (when used with a 0.5x reducing lens)
  • Heavy duty cast aluminum housing
  • WF10x/20mm eyepieces with eyeshields
  • Single boom stand with 17.5″ vertical and 26″ horizontal reach (10″ x 10″ base)

Optional Accessories

Luxo Illuminators: LED-3000 Ring Light, Dimmable LED-High Output Ring Light, Dimmable LED Ring Light, Fiber Optic Illuminators, and Fluorescent Ring Light; and 0.5x reducing lens.

Pre-Configured Systems

System 250

System 250-FL


System 250 Optical Data








Total Magnification (Range)

6.5 – 45x

3.3 – 22.5x

Field of View (mm)

31 – 4.5

61.5 – 8.9


Working Distance (mm)