Olympus SZX16 Manual de instrucciones - Página 12

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Olympus SZX16 Manual de instrucciones
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2
Engaging and Disengaging the Zooming Knob
2
Click Stop Function
· When the click stop knob is set to ON, the click stop function
TIP
is engaged for each magnification indicated with the zooming
knob. When the knob is set to OFF, the zoom magnification
can be varied continuously and finely near the click groove.
The click stop knob has been set to OFF before the
microscope is shipped from the factory.
· A click stop is provided for each of the 12 intermediate
indication positions of the zoom microscope body.
1
To engage the click stop function, rotate the click stop ON-OFF screw a
fully clockwise (in the direction of the arrow) using the Allen screwdriver.
The zooming knob then stops at every position corresponding to the
magnification indicated on the zoom magnification indication b .
2
To disengage the click stop function, rotate the click stop ON-OFF
screw a fully by three turns from the ON position, in the direction
opposite to the arrow, using the Allen screwdriver.
Do not rotate the screw too much, or the cover may be
NOTE
damaged.
3

Adjusting the Aperture Iris Diaphragm

Adjusting the aperture iris diaphragm increases the contrast of
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the observed image as well as the depth of focus.
However, setting the aperture iris diaphragm too narrowly
degrades resolution.
1
Adjust the aperture iris diaphragm ring a to the left or right.
Rotating the ring toward the left ( ) opens the aperture; rotating it
toward the right ( ) closes it. Adjust while monitoring the observed
image to confirm the contrast and focal depth improvement effects.
NOTE
Do not close the aperture too much, for this may cause
degradation in resolution and/or lack of ambient light.
2
Use the scale gradations as references for memorizing the ring position.
When the microscope is combined with the coaxial
NOTE
vertical illuminator (SZX2-ILLC16), minimizing the aperture
may obscure a part of the observed field of view. In this
case, open the aperture to an intermediate position.