National 420-1105-15 1-4x Stereo Zoom Microscope

BH #NASZ42011015 • MFR #420-1105-15
National
National 420-1105-15 1-4x Stereo Zoom Microscope
Key Features
  • Counterbalanced Arm Universal Stand
  • 15x Inclined Stereo Eyepiece
  • 15-60x Magnification Range
  • Parcentered Parfocalled Paired Objective
The 420-1105-15 1-4x Stereo Zoom Microscope from National Optical is a stereoscopic zoom microscope designed for laboratories and university students. The stereo (two) eyepiece configuration is preferred by most researchers and students because of the superior depth of field and comfort compared to monocular microscopes. This model of the 420 stereo microscope has a paired 15x eyepiece delivering a 15x to 60x continuous magnification range. The achromatic 1-4x objective lens system is parfocalled and parcentered throughout the zoom range to keep the specimen in focus and centered while zooming in/out. Optional eyepieces and auxiliary objectives expand the magnification range and working distances of the optical system.
Special Order
Expected availability: 7-14 business days
$864.00

National 420-1105-15 1-4x Stereo Zoom Microscope

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National 420-1105-15 Overview

  • 1Description
  • 2Optical System
  • 3Focusing
  • 4Construction Details

The 420-1105-15 1-4x Stereo Zoom Microscope from National Optical is a stereoscopic zoom microscope designed for laboratories and university students. The stereo (two) eyepiece configuration is preferred by most researchers and students because of the superior depth of field and comfort compared to monocular microscopes. This model of the 420 stereo microscope has a paired 15x eyepiece delivering a 15x to 60x continuous magnification range. The achromatic 1-4x objective lens system is parfocalled and parcentered throughout the zoom range to keep the specimen in focus and centered while zooming in/out. Optional eyepieces and auxiliary objectives expand the magnification range and working distances of the optical system.

A user-friendly design complements the range of features that make the 420 stereo zoom microscope a welcome addition to labs and classrooms. The 420-1105 has a universal stand with counterbalanced boom arm that enables a range of viewing positions, and is ideal for specimens that are too large or abnormally-shaped for fixed arm microscopes. The viewing head accommodates specimen heights up to 437mm / 17.2" and is capable of 360° rotation to help share the stereo eyepiece among colleagues and students without moving the microscope. The rack and pinion system has dual focus dials and includes a slip clutch mechanism to prevent mishandling. An adjustable interpupillary distance, individually adjustable diopter correction, and height-adjustable viewing head provide the 420 series with the flexibility needed to create a customized viewing experience.

Optical System

  • Paired 15x inclined eyepiece
  • 1-4x achromatic, parcentered, and parfocalled objective system
  • 15x to 60x magnification range
  • 80mm / 3.1" working distance, 437mm / 17.2" maximum specimen height
  • 50.5-74.5mm / 2-2.9" interpupillary distance
  • Individual diopter adjustments

Focusing

  • Rack and pinion focus system
  • Slip clutch prevents over-turning
  • Tension adjustment prevents focus drift
  • Dual focusing dials

Construction Details

  • Universal stand with counterbalanced boom arm
  • Post-mounted viewing head with locking collar
  • Pivoting boom arm with locking collar
  • 360° rotating viewing head
  • Cast metal frame
  • Grey enamel finish
  • 13.2" (33.5 cm) vertical post length
  • 15.4" (39 cm) maximum height
  • 40 lb (18.1 kg) weight with counterweight

National 420-1105-15 Specs

Microscope TypeStereo
HeadBinocular
Nosepiece1-Position Nosepiece
Imaging
Optical Magnification15x, 60x
Objective1 to 4x
Eyepiece15x
Illumination
Illumination TypeNone
General
Interpupillary Adjustment50.5 to 74.5 mm / 2 to 2.9"
Dimensions17.2" / 43.7 cm
Weight40 lb / 18.1 kg
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