The Fein Optic RB31 hematology microscopes are designed for blood analysis and feature a sturdy frame to withstand rigorous laboratory work.
- Objective Lenses: Reversed quadruple objective turret holds the included DIN Infinity Corrected Optical System (ICOS) Objectives.
- Plan Achromat 10x Objective, NA 0.3, WD 7mm
- Plan Achromat 40x Objective, NA 0.7, WD 0.75mm
- Plan Achromat 50x Objective, NA 0.95, WD 0.19mm, Oil Immersion
- Plan Achromat 100x Objective, NA 1.25, WD 0.28mm, Oil Immersion
 
- Viewing Head: Trinocular head, with 30° eyetubes. Interpupillary adjustment from 48-75mm. 3-Position beam splitter provides light 100% to camera, 50/50 to camera and eyepieces, or 100% to eyepieces.
- Eyepieces: PL-WF 10x Widefield, plan eyepieces, FN22. Left eyetube has +/-5 focusing adjustment.
- Total Magnification: 100x, 400x, 500x and 1000x.
- Specimen Stage: 185 x 142mm mechanical stage with 75mm x 50mm movement range. Fine focus scale 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. Fine adjustment of 0.002mm.
- Size & Weight: 19" (483mm) H x 13" (330mm) D x 10" (254mm) W, 22 lbs.
- Warranty: 5 years