National Model 420T-420AHF-10 Stereoscopic Microscope

National Model 420T-420AHF-10 Stereoscopic Microscope

National Model 420T-420AHF-10 Stereoscopic Microscope

B&H # NATSZM420AHF MFR # 420T-420AHF-10
National Model 420T-420AHF-10 Stereoscopic Microscope

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Product Highlights

  • 10-40x Magnification
  • Paired Widefield 10x Eyepieces
  • 45° Inclined Eyepieces
  • Head Rotates 360°
  • Halogen and Fluorescent Illumination
  • Two 80mm Stage Plates
  • All-Metal Frame
  • Lifetime Limited Warranty
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You Pay: $774.00

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  • 1Description

The National Optical & Scientific Instruments Model 420T-420AHF-10 Stereoscopic Microscope provides the user with a large image which remains clear throughout the 10-40x magnification. In addition, the microscope shows an upright, unreversed three dimensional view and a top light with a directional beam. Optional eyepieces and auxiliary objectives can be used to expand the magnification range and working distances.

The trinocular port accepts video or SLR adapters (included), while the paired widefield 10x eyepieces are inclined at a 45° angle. The viewing head also rotates 360° for sharing with other students or colleagues. The 420T-420AHF-10's lenses are achromatic and color corrected. When it comes to focusing, large dual focusing knobs help the user to make easy adjustments. The slip clutch prevents damage from over turning, while a tension adjustment eliminates focus drift.

The microscope is illuminated by both halogen and fluorescent light. The top light being a 12V halogen with a directional beam and rheostat control, the bottom being a 110V fluorescent. Base mounted controls make operation simple. The lights illuminate two frosted glass stage plates.

Optical System
  • 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 through 40x
Focusing
  • Large dual focusing knobs with slip clutch to prevent 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
  • Base mounted light controls permit choice of top only, bottom only, or dual illumination
  • Heavy-duty 3-wire grounded cord and plug
Stage
  • Two 80mm stage plates (frosted glass and reversible black/white plastic contrast plates)
  • Blue filter for transmitted light
  • Locked-on stage clips
Frame
  • 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: 13 3/8" (340mm); extends: 17" (433mm) for larger objects
  • Base width: 6 3/4" (171mm); base depth: 9 1/2" (242mm)
  • Net weight: 12 lb (5.4kg)
In the Box
National Model 420T-420AHF-10 Stereoscopic Microscope
  • Vinyl Dustcover
  • Rubber Eyeshields
  • Instruction Manual
  • Lifetime Limited Warranty
  • Table of Contents
    • 1Description
    Microscope Type Stereoscopic
    Magnification 10-40x
    Objectives Not specified by manufacturer
    Eyepiece Widefield 10x
    Light Source Top light: 12V 15W halogen
    Bottom light: 110V 5W fluorescent
    Overall Dimensions Height: 13 3/8" (340mm); extends: 17" (433mm)
    Base width: 6 3/4" (171mm); base depth: 9 1/2" (242mm)
    Weight 12 lb / 5.4kg
    Packaging Info
    Package Weight 15.85 lb
    Box Dimensions (LxWxH) 22.4 x 16.5 x 12.4"

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