National 161-PH Dual Head Compound Microscope

National 161-PH Dual Head Compound Microscope

National 161-PH Dual Head Compound Microscope

B&H # NADH161PH MFR # 161-PH
National 161-PH 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
  • Phase Contrast 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-PH overview

  • 1Description

The 161-PH Dual Head Compound Microscope from National Optical is a four-objective dual viewing head microscope designed for university students and laboratory use. Phase contrast DIN objectives minimize image distortions and provide enhanced contrast for viewing unstained specimens. 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-PH 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
  • Phase contrast 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-PH Dual Head Compound Microscope
  • Dustcover
  • Lifetime Limited Warranty (Excluding Bulb)
  • Table of Contents
    • 1Description

    National 161-PH 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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