RB31 Ergonomic Binocular Biological Lab Microscope

The Fein Optic RB31 biological microscopes are designed for routine laboratory work. This microscope is available with your choice of plan achromat or phase contrast objectives.

• Objective Lenses: Reversed quadruple objective turret holds the included DIN Infinity Corrected Optical System (ICOS) Objectives. Two options are available, Plan Achromat or Phase Contrast (select when ordering from the following options):
  • Plan Achromat 4x Objective, NA 0.10, WD 12.3mm
  • Plan Achromat 10x Objective, NA 0.3, WD 7mm
  • Plan Achromat 40x Objective, NA 0.7, WD 0.75mm
  • Plan Achromat 100x Objective, NA 1.25, WD 0.28mm, Oil Immersion
  • OR If Phase contrast is selected, the following items are included: Phase contrast condenser with BF and phase, centering screws and centering telescope.
  • Plan Phase Contrast 10x, NA 0.25, WD 12.1mm
  • Plan Phase Contrast 20x, NA 0.45, WD 1.5mm
  • Plan Phase Contrast 40x, NA 0.65WD 0.36mm
  • Plan Phase Contrast 100x, NA 1.25, WD 0.18mm
• Viewing Head: Ergonomic binocular head adjustable from 5-45°. Interpupillary adjustment from 48-75mm. 
• Eyepieces: PL-WF 10x Widefield, plan eyepieces, FN22. Left eyetube has +/-5 focusing adjustment. 
• Total Magnification: 40x, 100x, 400x and 1000x.
• Specimen Stage: 185 x 142mm mechanical stage with 75mm x 50mm movement range. Fine focus scale of 0.002mm.
• Illumination: High intensity 3W LED transmitted Koehler light system provides a bright and uniform field for each magnification. Field iris is adjustable with slot for 45mm diameter filter. Blue, green, and yellow filters are included. Voltage 100~240V.
• Light Focusing: NA 1.25 Koehler illuminator condenser with swing out top lens and iris diaphragm.
• Focusing: Coaxial coarse and fine focusing. Tension adjustable, with rack stop. Fine adjustment of 0.002mm.
• Size & Weight: 19" (483mm) H x 13" (330mm) D x 10" (254mm) W, 22 lbs.
• Warranty: 5 Years.