National 161-P Dual Head Compound Microscope

National 161-P Dual Head Compound Microscope

National 161-P Dual Head Compound Microscope

B&H # NADH161P MFR # 161-P
National 161-P Dual Head Compound Microscope

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Product Highlights

  • 20W Halogen Illumination
  • Mechanical Stage with X-Y Controls
  • Vertical/Inclined Monocular Viewing Head
  • 10x Eyepiece with Revolving Pointer
  • 4x/10x/40xR/100xR DIN Objectives
  • 40x/100x/400x/1000x Magnification
  • Plan Achromatic Objective Lenses
  • Parfocal/Parcentered Optics
  • Separate Fine/Coarse Focus Control
  • 1.25 NA Abbe Condenser w/ Focus and Iris
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National 161-P overview

  • 1Description

The 161-P Dual Head Compound Microscope from National Optical is a four-objective dual viewing head microscope designed for university students and laboratory use. Plan achromatic DIN objectives maximize image clarity, produce a flat field of view, and deliver consistent views on all four magnification settings. The 100xR magnification objective can be oil-immersed for improved light transmission. The objectives are also parfocalled and parcentered, keeping the specimen in focus and centered in the field of view when the magnification is changed.

A user-friendly design complements the range of features that make the 161 series microscope a welcome addition to labs as well as classrooms. A 360° rotating monocular viewing head enables the inclined eyepiece to be shared with multiple viewers without having to move the microscope. A dual viewing head enables simultaneous use by two users, or the attachment of a camera using the optional c-mount adapter.

This configuration of the 161 has an individual focus dial for fine and coarse adjustments. The focus system also includes a slip clutch and rack stop that prevents mishandling. The 161-P also features a rheostat-controlled 20W halogen light source and a mechanical stage with low-position x-y specimen adjustment controls. National Optical engineered this compound microscope to be easy to use yet feature-rich enough to employ advanced microscopy techniques. The 161 series microscope was built for reliable performance and is backed by the manufacturer's lifetime warranty.

Optical System
  • 10x, 18mm eyepiece with revolving pointer
  • Plan achromatic objective lenses
  • 4x,10x,40xR, 100xR DIN objectives
  • 40x,100x, 400x, 1000x magnification
  • 100xR enables oil immersion techniques
  • Parfocalled, parcentered, color-coded objectives
  • 360° rotating dual viewing head for easier eyepiece sharing
  • Coaxial low-position fine and coarse focusing controls
  • Elevating stage focus system
  • Slip clutch prevents over-turning
  • Tension adjustment prevents focus drift
  • Rack stop prevents damage to slides and protects lenses
  • 20 Watt halogen illuminator
  • 1.25 NA Abbe condenser lens with rack-pinion focusing
  • Swing-out filter with blue, green, and yellow filters
  • Iris diaphragm
  • 0.5A time delay fuse
  • Base-mounted On/Off switch
Construction Details
  • Mechanical stage with x-y specimen controls
  • 0.1mm specimen adjustment increments
  • Cast metal body with inclination joint
  • Ball-bearing mounted objective turret
  • Grey enamel finish
  • 18" (45.5 cm) height
  • 14.2 lb (6.5 kg) weight
In the Box
National 161-P Dual Head Compound Microscope
  • Dustcover
  • Lifetime Limited Warranty (Excluding Bulb)
  • Table of Contents
    • 1Description

    National 161-P specs

    Microscope Type Compound
    Body Type Inclined/vertical monocular
    Eyepiece 10.0x with revolving pointer
    Nosepiece 4-hole
    Objective(s) DIN standard: 4.0x (0.10 NA), 10.0x (0.25 NA), 40.0xR (0.65 NA), 100.0xR oil immersion (1.25 NA)
    Focuser Low position coarse and fine focus
    Light Source 20 Watt halogen
    Lens (Condenser) 1.25 NA Abbe with rack-and-pinion focus
    Specimen Stage 5.5 x 5.25" (14 x 13.5 cm) with low-position coaxial x-y controls
    Power Supply 110 VAC
    Height 18" (45.5 cm)
    Weight 14.2 lb (6.5 kg)

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