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National 460TBL Binocular Stereo Zoom Microscope

National 460TBL Binocular Stereo Zoom Microscope
SKU:460TBL
Regular Price: $625.00
On Sale For: $535.00
The National Optical 460TBL microscope is a compact stereo zoom microscope at an exceptionally low price. By simply turning the objective turret, magnification can be changed from 10x to 30x, and every point in between. Achromatic optical system provides sharp, parfocalled image throughout the zoom range, without having to refocus.

  • Objective Lenses: 1x - 3x objective - provides continuous zoom magnification. Viewing head rotates 360°.
  • Eyepieces: Choose from paired widefield 10x or 15x eyepieces. 5x or 20x eyepieces can be purchased separately below. Eyetubes are 45° inclined, with left diopter adjustment, interpupillary adjustment from 55mm to 75mm. Accepts 23mm eyepiece reticle (#965-400-05 or #965-400-10).
  • Total Magnification: Zoom range of the following:
    • 5x eyepieces - 5x - 15x
    • 10x eyepieces - 10x - 30x
    • 15x eyepieces - 15x - 45x
    • 20x eyepieces - 20x - 60x
  • Specimen Stage: Two 80mm stage plates - black plastic contrast and translucent white. Includes blue filter for transmitted light and locked on stage clips.
  • Stand: Heavy-duty all metal frame with fixed arm.
  • Focusing: Large dual focusing knobs with slip clutch to prevent damage to mechanism. Rack and pinion focusing, tension adjustment eliminates focus 'drift'.
  • Illumination: Top light is 12v 10 watt halogen with reflector with directional lever which puts the light where you need it. Bottom light is 110v 5 watt fluorescent for cool operation, greater light efficiency. Top and bottom lights can be used together or separate of each other.
  • Size & Weight: 12.5", 9 lbs.
  • Warranty: Lifetime limited warranty excluding bulb, cord and fuse.
Working Distance = 70mm
Maximum Specimen Height = 36mm
Eyepieces
Zoom Range
Field Size
5x
5x - 15x
5x - 22mm
15x - 7.3mm
10x
10x - 30x
10x - 20mm
30x - 6.7mm
15x
15x - 45x
15x - 13mm
45x - 4.3mm
20x
20x - 60x
20x - 10mm
60x - 3.3mm


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