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National Optical 420AH Stereo Zoom Microscope

National Optical 420AH Stereo Zoom Microscope
Regular Price: $703.00
On Sale For: $597.00
National Optical stereo zoom microscope on a fixed-arm stand offers upright, unreversed 3-dimensional images that remain in focus throughout the zoom range. Optional auxiliary objectives expand magnification range and working distances.

  • Objective Lenses: 1x - 4x objective - provides continuous zoom magnification. Viewing head rotates 360°.
  • Eyepieces: Choose from paired widefield 10x or 15x eyepieces. 5x or 20x eyepieces can be ordered below. Eyetubes are 45° inclined, with dual diopter adjustments, interpupillary adjustment from 55mm to 75mm. Accepts 23mm eyepiece reticle (#965-400-05 or #965-400-10). Trinocular version has a beam splitter which allows the light from the left eyetube to travel to the trinocular port for better camera light. Trinocular version includes a C-Mount Adapter as well as an SLR adapter.
  • Total Magnification: Zoom range of the following: Please view the Magnification Chart for complete details on working distance and field size at different magnifications.
    • 5x eyepieces - 5x - 20x
    • 10x eyepieces - 10x - 40x
    • 15x eyepieces - 15x - 60x
    • 20x eyepieces - 20x - 80x
  • Specimen Stage: Two 80mm stage plates (frosted glass and reversible black/white plastic contrast plates). Includes blue filter for transmitted light and locked on stage clips.
  • Stand: Professional all-metal frame - heavy-duty fixed arm stand. Note: #705-420 0.5x auxiliary objective is not operational on this particular frame.
  • Focusing: Rack and pinion focusing with large dual focusing knobs with slip clutch to prevents damage to mechanism. Tension adjustment eliminates focus 'drift'.
  • Illumination: Top light is 12v 15 watt halogen, bi-pin with directional beam and rheostat control. Bottom light is 110v 5 watt fluorescent for cool operation, greater light efficiency. Lights can be operated independently of each other.
  • Size & Weight: 13 3/8 " high, extends to 17" for larger objects, 11.7 lbs.
  • Warranty: Lifetime limited warranty, excluding bulb, cord and fuse.

Customer Service

Swift Microscope World
The Swift brand of scopes

Motic Microscope
The Motic brand of scopes

6122 Innovation Way, Carlsbad, CA 92009
(800) 942-0528 (US TOLL FREE)
1-760-438-0528 (INTERNATIONAL)