National 452TBL-15-LED 1x/3x Stereo Microscope

BH #NAS452TBL15L • MFR #452TBL-15-LED
National
National 452TBL-15-LED 1x/3x Stereo Microscope
Key Features
  • Top/Bottom Cordless LED Lighting
  • 45° Inclined Viewing Head
  • 15x Stereo Eyepiece
  • 1x/3x Objectives, 15x/45x Magnification
The 452TBL-15-LED 1x/3x Stereo Microscope from National Optical is a dual magnification stereoscopic microscope designed for laboratories, high school 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 452 stereo microscope has a paired 15x eyepiece delivering 15x and 45x magnification. Two achromatic paired objectives are parcentered and parfocalled to keep the specimen centered and focused when switching between the two magnification settings.
Special Order
Expected availability: 7-14 business days
$289.00

National 452TBL-15-LED 1x/3x Stereo Microscope

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National 452TBL-15-LED Overview

  • 1Description
  • 2Optical System
  • 3Focusing
  • 4Lighting
  • 5Construction Details

The 452TBL-15-LED 1x/3x Stereo Microscope from National Optical is a dual magnification stereoscopic microscope designed for laboratories, high school 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 452 stereo microscope has a paired 15x eyepiece delivering 15x and 45x magnification. Two achromatic paired objectives are parcentered and parfocalled to keep the specimen centered and focused when switching between the two magnification settings.

The 452TBL-15-LED microscope can illuminate specimens from above and/or below using cordless LED lights activated by separate base-mounted On/Off switches. LED lighting is suitable for microscopy because of its cool operating temperature, relatively white color temperature, and energy efficiency. The cordless LED lights will provide up to 50 hours of illumination after a full eight-hour charge. The rack and pinion system has a single focus dial and includes a slip clutch mechanism to prevent mishandling. An adjustable interpupillary distance, left-side diopter correction, and reticle holder/retainer make the 452 stereo microscope a welcome addition to classrooms as well as labs.

Optical System

  • Paired 15x (20mm) inclined eyepiece
  • 1x and 3x achromatic objectives
  • 15x and 45x magnification
  • Parfocalled, parcentered, paired objectives
  • 75mm / 3" working distance, 35mm / 1.4" maximum specimen height
  • Eyepiece with diopter adjustment and reticle holder/retainer
  • 55-75mm / 2.2-3" interpupillary distance

Focusing

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

Lighting

  • Incidental (top) cordless LED illumination
  • Transmitted (bottom) cordless LED illumination
  • Up to 50 hours of continuous operation on a full charge
  • Dual base-mounted On/Off switches

Construction Details

  • 80mm frosted glass and 80mm reversible black and white stage plates
  • Locked on metal stage clips
  • Cast metal frame
  • Grey enamel finish
  • 12.2" (31 cm) height
  • 5.5 lb (2.5 kg) weight

National 452TBL-15-LED Specs

Microscope TypeStereo
Head45° Inclined Binocular
Nosepiece1-Position Nosepiece
Imaging
Optical Magnification15x, 45x
Objective1x, 3x
Eyepiece15x
Illumination
Illumination TypeLED
General
Power SourceBattery
Battery3 x AA (50-Hour Runtime)
Interpupillary Adjustment55 to 75 mm / 2.2 to 3"
Dimensions3.2" / 8 cm (Specimen Stage)
12.2" / 31 cm (Microscope)
Weight5.5 lb / 2.5 kg
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