Zoom Stereo Microscope (1X-4X) - 420-1105-10


$1,065.00 Sale Save
National's 420 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.

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.
Universal stand features heavy construction and counterbalanced arm for maximum stability. With an adjustable mounting post, it provides extreme flexibility in positioning.

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


Rack and pinion focusing with large dual focusing knobs with slip clutch to prevents damage to mechanism. Tension adjustment eliminates focus 'drift'.


No built-in illumination is included with this model.


Professional, all-metal stand.
Heavy-duty post mount with locking support collar, permits up or down adjustment of viewing head to accommodate different sized objects.
Total stand height: 432mm (17 in.). Net weight: 27.2 kgs (60 lbs).
Base: 300mm x 300mm (11.75 in. x 11.75 in.). Base height: 52mm (2.125 in.)
Vertical post length: 380mm (15 in.). (O.D. 30mm)


Distance between main vertical post and center of field of view, when horizontal bar is adjusted to minimum or maximum extension: Minimum = 190mm, Maximum = 525mm
Distance from bottom edge of objective lens and work surface when horizontal bar is adjusted to minimum or maximum height:
Minimum = 33mm (1.25 in.), Maximum = 257mm (10.125 in.)


Head, focusing block and universal stand are in separate molded styrofoam containers with vinyl dustcover and eyeshields.
Master carton pack 1 each:
Head & focusing block: Ship wt. 4.1 kgs (9 lbs), Dimensions 400x425x275mm (16x17x11 in.)
Universal boom stand: Ship wt. 29.94 kgs (66 lbs), Dimensions 600x380x280mm (26x15x11 in.)