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The 131-SPMS Compound Microscope with Mechanical Stage from National Optical is a four-objective inclined microscope designed for middle school and high school students. Achromatic DIN optics minimize image distortions and deliver consistent views on all four magnification settings. The objectives are also parfocalled and parcentered, keeping the specimen in focus and centered in the field of view when the magnification is changed. This microscope was built for reliable performance and is backed by the manufacturer's lifetime warranty.
A user-friendly design complements the range of features that make the 131 series microscope a welcome addition to classrooms. A 360° rotating monocular viewing head enables the eyepiece to be shared with multiple viewers without having to move the microscope. This configuration of the 131 has an individual focus dial for fine and coarse adjustments. The focus system also includes a slip clutch and rack stop that prevents mishandling by novice users. The 131-SPMS also features a 20W tungsten 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 help high school students transition to more sophisticated instruments.
10x, 18mm eyepiece with revolving pointer
4x,10x,40xR, 100xR color-coded DIN objectives
40x,100x, 400x, 1000x magnification
Rotating objective turret with click stops
Achromatic, parfocalled, parcentered objectives
360° rotating head for easier eyepiece sharing
45° inclined monocular eyepiece
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 tungsten illuminator with blue filter
1.25 NA Abbe condenser lens
Base-mounted On/Off switch
Mechanical stage with x-y specimen controls
Cast metal body with inclination joint
Grey enamel finish
14" (36cm) height
7.8 lb (3.5 kg) weight
In the Box
National 131-SPMS Compound Microscope with Mechanical Stage
Lifetime Limited Warranty (Excluding Bulb)
Table of Contents
10.0x with revolving pointer
DIN 4.0x, 10.0x, 40.0xR, 100.0xR
Low position coarse and fine focus
20 Watt tungsten
1.25 NA Abbe
4.75 x 4.75" (12 x 12 cm) with low-profile coaxial x-y controls
14" (36 cm)
7.8 lb (3.5 kg)
National 131-SPMS Compound Microscope with Mechanical Stage Review