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Binocular Dissecting Microscope

Binocular Dissecting Microscope - magnification of these...

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Binocular Dissecting Microscope (Stereomicroscope) Binocular dissecting microscopes are useful for viewing material that is too large to be viewed by compound light microscopes. The magnification of these microscopes typically ranges from 8X to 40X. Dissecting microscopes (Stereomicroscopes) have two ocular lenses and produce a three- dimensional image. If you wear glasses and are unfamiliar with adjusting the ocular lenses of optical equipment to suit your eyes, see the section titled " Adjusting the Ocular Lenses " below. There are several kinds of binocular dissecting microscopes available in the laboratory room. The microscope shown below requires an external light source and the magnification is changed by rotating the large knob. These scopes have a 15X ocular lens and an additional 2X lens screwed onto the objective. The total magnification is 20X, 25X, 40X, 60X, or 80X. If the 2X lens is removed, the magnifications become 10X, 15X, 20X, 30X, and 40X. The total
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Unformatted text preview: magnification of these microscopes can be read directly from the magnification adjustment knob without doing multiplication. The microscope below requires a separate light source (not shown). The microscope shown below contains a zoom adjustment. By rotating the adjustment, the magnification changes from 8X to 40X. The microscope requires a separate light source (shown). Both microscopes shown below have zoom magnification adjustments. The scope on the left ranges from 20X to 40X and the one on the right ranges from 10X to 45X. These two microscopes have a light source built in. The light adjustment knob (see photograph) enables the specimen to be illuminated from above, from below or from both above and below at the same time. The zoom adjustment of the microscope on the right has the total magnification written on it. The zoom adjustment on the microscope on the left has numbers that must be multiplied by 10 to give the total magnification....
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