Axiotech and Axiotech
vario
Carl Zeiss
B 40-020 e 06/99 3-23
• Remove the eyepiece, look into the tube and
use the centering telescope to center the
aperture diaphragm with the exit pupil opening
using the two knurled screws ( 3-21/2). Then
use the knurled ring (3-21/1) to set the aperture
diaphragm to approx. 2/3 of the diameter of
the objective exit pupil ( 3-20/E). Specimens
featuring standard contrast should always be
viewed with an aperture diaphragm opening of
approx. 2/3 of the diameter of the objective exit
pupil. Of course, it is possible to deviate from
this rule depending on special specimen
features or for other reasons. Tighten fixation
screw (3-21/3) to retain this setting.
• Finally, refocus on the specimen via the coaxial
fine drive.
☞
Since field size and objective aperture change after every objective change, the setting of
luminous-field diaphragm and aperture diaphragm must be repeated as described above.
For all objective magnifications V
< 10×, the front lens 0.9 of the swing-in condenser 0.9 Z
Pol must be removed from the optical beam path.
Fig. 3-21 ABBE condenser 0.9/1.25
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