Celestron 44345 Manuel d'instructions télécharger pdf (Page 5)

Note: A vernier scale on both axes allows the exact marking

and replication of an object in the ﬁeld of view that the user

may want to come back to.

4. Use the objective nosepiece (Figure 1) to rotate the objective

lenses (Figure 1) until the 4x objective lens is directly over

the specimen. Always start with the lowest power objective

(4x with this microscope) which gives you 40 power and work

your way up to higher powers. At 40 power you will have the

widest ﬁeld of view and the brightest image.

5. Look at the LCD screen while turning the focus knob (Figures

1 & 7) until the specimen comes into view. You may need to

adjust the stage movement knobs (Figure 7) slightly to center

the specimen in the ﬁeld of view. The larger focus knob is the

coarse focus and the smaller knob is for ﬁne (exact) focusing.

6. With the 4x objective lens, you can also vary the power

anywhere from 40x to 160x by using the digital zoom.

7. For higher powers, you will need to rotate the objective

nosepiece to the 10x or 20x and to the 40x objective for the

maximum power. You will have to refocus when changing

the power of the objective lenses. While using any of these

objective lenses you also can increase power by using the

digital zoom. Note that using a higher power objective lens

will yield sharper images versus a lower power objective lens

and digital zoom for the same magniﬁcation.

8. To use the digital zoom, you touch the screen and push down

lightly, then gradually move your thumb or ﬁnger towards

the right side to increase the power from 1x to 4x or touch

the screen and do the same on the left side to decrease the

power. Note: Do not push too fast or the sensitivity of the

zoom will not function.

Note: When changing objective lenses, lower the stage to

its lowest position so you will not hit anything during the

rotation. Also, at the higher powers, be careful when raising

the stage close to the objective lens so that the objective

does not hit the slide specimen (or other object) and

cause damage.

Using Filters & the Diaphragm — Normally most viewing or

imaging will be done without colored ﬁlters and before using the

microscope check to make sure no ﬁlters are in the optical path.

However, to bring out different levels of detail, experiment with

changing the color of the back lighting of the specimen especially

for very bright transparent specimens. To change the lighting

color, rotate the wheel (Figure 8) to the desired color – Red (R),

Green (G), Blue (B). Each color is centered when you hear/feel the

faint click stop. You may need to refocus by adjusting the focus

knob (Figure 1) slightly for best viewing. You should experiment

with each of the colors to see the results.

Diaphragm — within the wheel are holes with three different

diameters, (1) 1 mm, (3) 3 mm, (6) 6 mm which limit the amount

of light passing through to the specimen. These holes are part of

the diaphragm which allows you to change the hole opening size

to maximize the contrast, brightness, etc.

The default setting is the (6) for the 6 mm hole which should be

used for most viewing. You can look under the stage (see Figure

9) to make sure the proper setting you wish is actually

being used.

Rotating the LCD Screen — You can rotate the viewing position

of the LCD screen 180° – 90° to the right and 90° to the left. You

can view any position you choose along the 180° rotation. This

function allows you to share the view with others without actually

moving the complete microscope. To move the LCD screen, hold

the round black part (see Figure 1) below the orange ring with

one hand and then hold the LCD module with the other and

move it to the position you desire.

You can adjust the tension of the rotation of the monitor by

tightening/loosening the adjustment screws as shown in Figure

1. It is best to have the tension somewhat tight so the monitor is

rigid. Turn the LCD screen on and you are now ready to use

your microscope for viewing and if any problems check the

trouble shooting section.

Figure 9

Figure 8

Wheel

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Celestron 44345 Manuel d'instructions Page 5

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