National Optical 168 Binocular Microscope

The National Optical model 168 binocular or 167 monocular high power compound microscope incorporates a wide range of features designed for university and laboratory use. Superb optical clarity and reliable mechanical engineering assure years of top performance. Choose from four grades of objective lenses: Standard semi-plan achromatic lenses deliver excellent clarity and normal flatness of field; ASC high contrast deliver extra image contrast; Plan achromatic for superior clarity and flatness of field.

• Objective Lenses: DIN 4x, 10x, 40xR, 100xR (oil immersion) objectives - choose from semi-plan, super high contrast, plan or phase contrast. You may want to view our objective lens information page. All microscope objectives are parfocalled, parcentered and color-coded. Binocular viewing head with 30° inclined eyepieces, with dual diopters, interpupillary adjustment 54mm to 76mm, rotates 360° for easy sharing by more than one student. 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 10x eyepiece with 18mm field of view, supplied in both diagonal and vertical viewing tubes.
  Available in a monocular version as well - view model 167 here.
• Total Magnification: 40x, 100x, 400x, 1000x.
• Specimen Stage: Large 140mm x 135mm stage (5.5" x 5.25"), with professional quality, built-in, low profile, ball-bearing mounted mechanical specimen holder with low-position coaxial controls, 70mm (x) by 50mm (y) movement with graduations of 0.1mm. 1.25 N.A. Abbe condenser has rack & pinion focusing, iris diaphragm, swing-out filter holder with clear blue, green and yellow filters supplied.
• Focusing: Coaxial coarse and fine focusing controls, coarse has tension adjustment, fine is graduated.
• Illumination: 3w LED with variable rheostat control and on/off switch.110V~220V external auto-switching power supply. CE certified.
• Size & Weight: 7.25" x 9.25" x 16.25" high, 14 lbs.
• Warranty: Lifetime limited warranty, excluding bulb, cord and fuse.