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RESOLUTION or RESOLVING POWER – the ability of a lens to define the
details of the specimen at a maximum magnification. This is governed by
the NA (Numerical Aperture) of the lens. For example, a 40X objective
with NA 0.65 has a maximum resolving power of 650X, equal to 1000
times the NA. This rule of NA x 1000 is true of all achromatic objectives.
WORKING DISTANCE – the distance from the lens of the objective to the
cover slip on the slide, when the specimen is in focus.
USING YOUR SWIFT M7000 SERIES MICROSCOPE
Once you have learned the terminology and purpose of each component
of the microscope, use of the microscope is simple and enjoyable. By
following these easy steps, you will be able to begin studying the
specimen quickly and easily.
1. Open the specimen holder of the mechanical stage by pressing the
finger clip lever. Carefully place the slide against the stationary
side and back edge of the mechanical stage. Now slowly release the
finger clip lever allowing the specimen holder finger to hold the
slide in place.
2. Align the specimen under the objective lens by using the adjustment
knobs under the mechanical stage. The bottom knob moves the slide
from right / left while the top knob adjusts the slide from front /
back. These knobs allow for precise movement and scanning of the
slide.
3. After securing the slide into position with the slide holder, turn the
power switch on. Rotate the nosepiece to place the lowest power
objective (4XD) into position over the specimen. Be sure the
objective “clicks” into position. The iris diaphragm should be
adjusted at this time to ¼ inch (5 mm) open.
If you have a Swift M7000 with a monocular head please omit steps 4 - 5.
4. For a binocular head, which has two eyepieces, the next step is to
adjust the interpupillary distance (I.D.) and diopter adjustment ring
of the binocular head. Set the interpupillary distance gauge and the
diopter adjusting ring (on the left eyetube) to “62”. Look through
both eyepieces with both eyes open to see whether you can
comfortably observe the specimen. If it is not comfortable for your
