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National Optical 157 binocular high power compound microscope has precision optics, highly engineered mechanics and very rugged construction. Objective turret (nosepiece) is in reverse position to permit easier changing and positioning of specimen slides. Preferred by teachers, the 5-watt fluorescent illumination system provides optimum image brightness, virtually no bulb heat and has a 10,000-hour rated bulb life.
- Objective Lenses: DIN 4x, 10x, 40xR, 100xR objectives are achromatic, parcentered, parfocalled, color-coded.
45° inclined viewing head rotates 360° for easy sharing by more than one student, or for reverse position viewing.
- Eyepieces: Widefield 10x eyepiece with revolving pointer in one eyepiece. Accepts optional (#965-160) eyepiece reticle.
- Total Magnification: 40x, 100x, 400x, 1000x.
- Specimen Stage: Large 135mm x 135mm stage (5.25" x 5.25"),
with professional quality, low profile mechanical specimen holder with low-position coaxial x-y controls.
1.25 N.A. abbe condenser with spiral focusing mount, iris diaphragm, swing-out filter holder, blue filter supplied.
- Focusing: Low position coarse and fine focusing controls.
Slip clutch prevents damage to focusing system and
tension adjustment eliminates stage drift.
Safety rack stop prevents damage to slides and objective lenses.
- Illumination: 5 watt fluorescent illumination delivers greater light and longer life than standard tungsten bulbs. Virtually heat free operation with base-mounted on/off switch.
- Model 158-LED offers cool LED illumination - cordless microscope runs on rechargeable batteries, recharger is included
- Size & Weight: 15" high, 11 lbs.
- Warranty: Lifetime limited warranty, excluding bulb, cord and fuse.
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Regular Price: $675.00
On Sale For: $574.00 |
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