Celestron 44330 Manual De Instrucciones página 4

Viewing a Specimen Slide
Figure 3
Viewing Objects – you can view coins, stamps, currency, plants, foods, circuit boards,
and many other things. You should use only use 100x and 200x powers and the height
should be no more than ¼" (6 mm). You will also need to use a bright desk lamp (or
similar) that can focus directly on the object. A well slide would be helpful to center
very small objects.
Focusing & Changing Power (Magnification)
Now that the specimen slide (or object) is placed directly under the objective lens, use
the focus knob to focus on the specimen. The focus knob takes some getting used to –
rotate past the focus and then back as you will see how to obtain the best focus
position. After some usage the sharp focus position will be easy to find.
1. Always start with the lowest power (5x objective lens) which will give you 100
power.
2. For higher powers, you will have to rotate the nosepiece to change the objective
lens to the 10x one (200 power) or the 20x one (provides power of 400x). You
rotate the nosepiece by holding the microscope above the nosepiece with one
hand and rotate the nosepiece with the other hand until it clicks at the position.
Note: The power of the objective lens you are using is shown on the
nosepiece after it clicks into position.
3. At the highest powers, your views will be greatly magnified but somewhat
darker. The most enjoyable views can be at the lower powers which have a
wider field of view and brighter illumination.
Note: You can obtain other powers if using optional 23.2 mm optional
eyepieces obtained from microscope accessory supply companies.
Microscope Operation
Carefully place a specimen slide under the stage clips
and center the specimen directly over the hole in the
center of the stage (where the bottom illuminator light
shines up through a specimen slide – see Figure 3 to the
left. It will take some experimenting to place slides or
objects in the center of the stage as the image you see is
upside down and reversed but after some usage you will
have an easy time centering. Read the sections below
on Focusing, Changing Power, and Illumination before
proceeding.
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