DC3-420TH Stereo Zoom Microscope from National Optical Instruments

DC3-420TH Stereo Zoom Microscope from National Optical Instruments

The DC3-420TH stereo zoom microscope offers convenience and versatility of viewing large picture at 10x magnification, then zooming continuously all the way to close-up detail at 40x magnification. Upright, unreversed 3-dimensional image remains in focus throughout zoom range. Superb optical clarity and reliable mechanical engineering assure years of top performance. Built in high-resolution digital or analog/digital camera options. Supplied with Motic Images 2.0ML software, which allows the user to view, capture, label, manipulate, and measure images. This microscope is fully functional, independent of camera application.


  • Paired widefield 10x eyepieces are 45° inclined, with dual diopter adjustments, interpupillary adjustment from 55mm to 75mm.
  • Achromatic, color corrected lenses.
  • Continuous magnification from 10x thru 40x. See specification chart for full range available with use of optional auxiliary lenses.


  • Top light is 12v 15 watt halogen, bi-pin with directional beam and rheostat control.
  • Bottom light is 12V 10 watt halogen, bi-pin.
  • Base mounted light controls permit choice of top only, bottom only, or dual illumination.
  • 12VDC power converted operates on 100v-240v 50H/60H current, without need of additional transformer.
  • 2.5 amp time delay fuse.


  • Large dual focusing knobs with slip clutch to prevent damage to mechanism.
  • Tension adjustment eliminates focus “drift”.


  • Large 165mm wide x 220mm deep stage surface.
  • Two 80mm stage plates (frosted glass and reversible black/white plastic contrast plates).
  • Blue filter for transmitted light.
  • Locked on stage clips.


  • Professional, all-metal frame, gray enamel finish.
  • Heavy-duty post mount with locking support collar, permits up or down adjustment of viewing head to accommodate different sized objects on stage.
  • Height: 330mm (13 in.) extends to 433mm (17 in.) for larger objects.
  • Net wt. 5.1 kgs (11.2 lbs)


  • Molded styrofoam container with rubber eyeshields, vinyl dustcover and instruction manual.
  • Individual: Ship wt. 8.2 (18 lbs), Dimensions 450x425x275mm (18x17x11 in.)
  • Master carton pack 1 each: Ship wt. 8.2 kgs (18 lbs), Dimensions 450x425x275mm (18x17x11 in.)


  • Lifetime limited warranty, excluding bulb and cords.
  • Camera warranty: 1 year.
Interested in
learning more?