National 420-1105-10


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°.
  • Achromatic, color corrected lenses.
  • 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.
More Information
MSRP 995.00
Head Type Binocular
STEM Approved No
Illumination None
Power None
Back to Top

National 420-1105-10