RB20 Trinocular Lab Microscope

The Fein Optic RB20 high power laboratory biological microscope offers high quality optics at an affordable price point. View the binocular version of this microscope here.

• Objective Lenses: Infinity Corrected DIN Plan Achromat 4x, 10x, 40xR, 100xR (oil immersion) objectives. All microscope objectives are parfocalled, parcentered and color-coded. Quad objective turret is ball-bearing mounted for smooth, precise positioning of objectives, features textured rubber knurling for easy grip. Mounted in reverse position to facilitate ease in changing slides.
• Eyepieces: Widefield High Eyepoint Focusing 10x eyepieces / FN 20mm. Eyepiece can hold a 20mm diameter reticle if the reticle retaining ring is added.
• Viewing Head: Trinocular Siedentopf viewing head with 30° inclined binocular eyepiece with interpupillary adjustment 47mm to 75mm. Vertical trinocular tube for camera integration.
• Eyepiece Reticle: Optional eyepiece reticle installed (select when ordering).
• Total Magnification: 40x, 100x, 400x, 1000x.
• Specimen Stage: Large 150mm x 140mm stage, with professional quality, built-in, low profile, ball-bearing mounted mechanical specimen holder with low-position coaxial controls, 76mm (x) by 50mm (y) movement with graduations of 0.1mm. 1.25 N.A. Abbe condenser has rack & pinion focusing and iris diaphragm.
• Focusing: Coaxial coarse and fine focusing controls, coarse has tension adjustment, fine is graduated. Locking position for stage.
• Illumination:  Fixed Koehler illuminator, 3W LED with variable rheostat control and on/off switch.110~240V power supply.
• Cord and Accessory Storage: Storage compartment located on the back of the microscope frame to store power cord and microscope accessories when not in use.
• Size & Weight: 9" W x 15.5" D x 14" H, 17 lbs.
• Warranty: 5 Year warranty, excluding bulb, cord and fuse.

View the RB20 brochure

View the RB20 manual