National 447TBL-10 Stereo Microscope

National 447TBL-10 Stereo Microscope

National 447TBL-10 Stereo Microscope

B&H # NASM447TBL10 MFR # 447TBL-10
National 447TBL-10 Stereo Microscope

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Product Highlights

  • 2x, 4x Magnification Objectives
  • Paired Widefield 10x Eyepieces
  • Viewing Head Rotates 360°
  • Tungsten Illumination
  • Rotating Objective Turret
  • Rack and Pinion Focusing
  • All-Metal Frame
  • Lifetime Warranty
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You Pay: $284.00

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  • 1Description

The National Optical & Scientific Instruments 447TBL-10 Stereo Microscope is a budget-friendly option with a number of useful features. Setting itself apart from the other microscopes in the 446 series, the 447TBL-10 has 2x and 4x objectives, for 20x and 40x magnification. Other defining features include paired widefield 10x eyepieces, a 360° rotatable viewing head, tungsten illumination, and rack and pinion focusing. There's also a limited lifetime warranty, ensuring the 447's place in your institution for generations to come.

The aforementioned paired widefield 10x eyepieces sit at a 45° angle. A left-side diopter adjustment, an interpupillary adjustment, and reticle holder/retainers enhance their usefulness as well. The tungsten illumination helps to bring specimens into focus with total clarity. Two lights - a top incidental light and a bottom transmitted light - can be operated with the 4-position control. You have the option of turning on only the top light, the bottom light, or both lights. You can also turn both off using the switch.

Sporting an all-metal frame, the 447TBL-10 is tough, able to stand up to daily abuse. The rack and pinion focusing is precise and responsive. However, the microscope also features safety mechanisms, such as a slip clutch and a tension adjustment, that prevent damage. Two 80mm stage plates provide a choice of frosted glass and reversible black/white plastic contrast plates for specimen placement, while locked-on stage clips keep slides secure.

Optical System
  • Paired widefield 10x eyepieces, left-side diopter adjustment, interpupillary adjustment from 55mm to 75mm
  • Eyepieces equipped with reticle holder/retainer to accept reticle with 23mm O.D.
  • Viewing head rotates 360°, adjusts up or down on post mount to accommodate difference size specimen
  • Paired objectives are parfocalled, parcentered, and achromatic
  • Magnification changed by rotating objective turret 90° to positive click stops
Illumination
  • Top light (incidental) is 12V, 10 watt tungsten with adjustable beam
  • Bottom light (transmitted) is 12V, 10 watt tungsten
  • 4-position light control: top only / bottom only / top and bottom / off
Base
  • Professional, all-metal frame
  • Rack and pinion focusing with slip clutch and tension adjustment
  • Includes two 80mm stage plates: frosted glass and reversible black and white plastic contrast plate
  • Locked-on stage clips
In the Box
National 447TBL-10 Stereo Microscope
  • Limited Lifetime Warranty
  • Table of Contents
    • 1Description
    Microscope Type Stereo
    Head Binocular
    Objectives 2x, 4x
    Eyepiece Widefield 10x, 20mm
    Light Source Tungsten
    Stage 80mm, frosted glass, reversible black & white contrast plate
    Overall Dimensions Height: 12.25" / 310mm
    Weight 505 lb / 2.2kg

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