Zoom Stereo Microscope (1X-4X) - 420T-430PLL-10


$955.00 Sale Save
National's 420T Series offers the convenience and versatility of viewing items at 10X magnification, then zooming continuously to maximum detail at 40X magnification. The upright, unreversed image remains in focus throughout the zoom range. The 420 Series also features achromatic, color corrected lenses, tension adjustment and 360ᄚ rotating viewing head. Trinocular port accepts optional video c-mount and SLR camera adapters (included).

The convenience and versatility of viewing a 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. Optional eyepieces and auxiliary objectives expand magnification range and working distances. Trinocular port accepts video or SLR adapters (included).

1x to 4x Zoom


Paired widefield 10x eyepieces are 45° inclined, with dual diopter adjustments, interpupillary adjustment from 55mm to 75mm. Accepts 23mm eyepiece reticle.
Viewing head rotates 360°.
Continuous magnification from 10x thru 40x. See specification chart for full magnification range available with use of optional auxiliary lenses.


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


Top light is LED with directional beam and rheostat control.
Bottom light is LED for cool operation, greater light efficiency.
Base mounted light controls permit choice of top only, bottom only, or dual illumination.
Heavy-duty 3-wire grounded cord and plug.
110V-240V internal auto-switching power supply.
Supplied with American style IEC power cord.
Additional wall adapter for 240V operation required.


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: 340mm (13-3/8 in.) extends to 433mm (17 in.) for larger objects.
Base width: 171mm (6-3/4 in.), Base depth: 242mm (9-1/2 in.)
Net wt. 5.4 kgs (12 lbs)


Molded styrofoam container with rubber eyeshields and vinyl dustcover.
Individual: Ship wt. 7.7 kgs (17 lbs), Dimensions 550x375x375mm (22x15x15 in.)
Master carton pack 2 each: Ship wt. 14.4 kgs (32 lbs), Dimensions 475x375x475mm (19x15x19 in.)