Diopter Adjustment; Centering The Condenser - Optika Italy B-1000 Serie Manual De Instrucciones

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Diopter adjustment

Adjust the fine focusing knob
to get the image sharp and
clear while observing with
your right eye, then turn the
left diopter ring to a sharp
and clear image also with the
other eye. The highpoint eye-
pieces allow the user to wear
glasses. (Fig.24)
NOTE :For the optimal para-
focality of the image, it's sug-
gested to wear your glasses
during the normal use of the
microscope.
Centering the
condenser
Insert the swing-out lens of
the condenser ① and fully clo-
se the field diaphragm ②. Ro-
tate the condenser adjustment
knob ③ until you see a sharp
image of the closed field
diaphragm (a bright spot of
light). Act on the condenser
centering screws ④until you
move the bright spot in the
center of the image field. Then
re-open the field diaphragm
②. (Fig.25)
Adjust the aperture of the iris
diaphragm under the conden-
ser to set the numerical aper-
ture of the illuminator, thus
controlling image contrast and
resolution. It is suggested to
set the aperture diaphragm
between 70% and 80% of
objective's N.A. (Fig.26)

CENTERING THE CONDENSER

Page 12
APERTURE IRIS
DIAPHRAGM IMAGE
OBJECTIVE PUPIL
Fig.24
Fig.25
70-80%
30-20%
Fig.26

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B-1000met

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