Celestron 44306 Manual De Instrucciones página 6

Viewing Objects and Slides – you can view coins, stamps, currency, gems,
plants, foods, circuit boards, specimen slides, and many other things. You need
to read the information about focusing, power, and illumination below before
proceeding.
Focusing & Changing Power (Magnification)
When the microscope is placed directly over the object or slide,
use the focus ring (see Figure 3) to obtain a sharp focus. The
focus ring 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 (4 to 8x) which is
obtained when the power switch is set to the "LOW"
position.
2. When the microscope is positioned directly on or over an object, then this
will be 8x. If you hold the microscope slightly above the object the power
will decreased to 4x as you move further away (about ½" or 13mm).
Microscope Operation
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Figure 3