National Optical 161 Laboratory Dual-head Microscope
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Technical characteristics
- BrandNational
- SpecializationMedical
Description
- 10x widefield eyepieces with18mm exit pupil distanceand a pointer in one eyepiece
- 360° rotating head with one 30° inclined eyepiece and one vertical eyepeice with diopter
- 4x (0.10 NA), 10x (0.25 NA), 40xR (0.65NA) and 100xR (1.25 NA) deluxe objectives are DIN achromatic, parcentered, parfocaled, and color coded
- Also available with optional super-high contrast or plan achromatic objectives
- 40xR objective is retractable, 100xR objective is oil retractable
- The reverse position 4-objective turret is ball-bearing mounted for smooth, precise changes in magnification
- Coaxial fine and coarse focusing with slip clutch to prevent damage to slides or optics
- Coarse focus has tension adjustment to eliminate stage drift, fine focus is graduated
- All metal rack and pinion focusing
- Large 140 x 135mm stage with stage stop and integrated mechanical stage with low-position coaxial x-y controls and 70mm (x) by 50mm (y) movement with graduations of 0.1mm
- Adjustable 1.25 NA Abbe condenser with rack and pinion focusing and an iris diaphragm for contrast control
- Swing-out filter holder with clear blue, green, and yellow contrast filters
- 20-watt, 12-volt extra-bright halogen illumination with a variable rheostat for precise lighting control
- Special wiring for 220 volt use is available
- Field of view is 4.5mm at 40x and 0.18mm at 1000x
- Working distance ranges from 18.5mm at 40x to 0.06mm at 1000x
- Cast aluminum frame, stands 18" tall
- Includes operating instructions and a dust cover
- Replacement light bulb available
- Lifetime warranty
- National Optical Model 161.
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National Optical 161 Laboratory Dual-head Microscope
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