Using The Microscope - Optika SZM-1 Bedienungsanleitung

4.0 USING THE MICROSCOPE

4.1 Illumination system
The SZM-1 and SZM-2 come with an integrated illumination system with incident and transmitted
light. For the microscopes without integrated illumination systems it is possible to use an external cold
light source. By using the correct light is possible obtain the better image of your sample.
Before starting, read the section 5.3 about electrical safety precautions. Then, insert the power cord
and use the brightness controls to turn on the lamps and control the light intensity.
The base is equipped with two clips that can be used to block the specimen.
4.2 Adjust interpupillary distance
Hold the right and left parts of the observation head by both hands and adjust the interpupillary distan-
ce by moving the two parts until one circle of light can be seen.
If two circles appear, the interpupillary distance is too big, and
if two overlapped circles appear, the interpupillary distance is
too small.
4.3 Focus and regulation of the focusing tension
Put the sample to be observed on the plate and turn the zoom
to the highest magnification using the bilateral zoom knob. Try
to focus the sample using the focusing knobs.
4.4 Dioptric compensation
This compensation makes it possible for people with glasses
to adjust the microscope to their eyes and use the microscope
without glasses. Turn the zoom down to the lowest magnifica-
tion. Adjust the diopter compensation ring of the right eyepiece
tube until the image of the right eyepiece is clear and sharp.
Repeat the procedure for the left eyepiece. Then, check the
focus of the image for the whole zoom range. It should now be
perfectly parfocal (focus is always maintained during the change of magnification).
4.5 Magnification and working distance
The total magnification varies from 1.75x to 180x depending on the eyepieces and auxiliary objectives
used. With the bilateral zoom knob, the user can change the magnification in a factor of 6.4 with per-
fect parfocality and the image is always centred.
Select the desired magnification by adjusting the bilateral zoom knob. Change the eyepieces and/or
add an appropriate magnifying objective lens if necessary. The total magnification used can be calcu-
lated by the following equation:
Total magnification = Eyepiece magnification x Zoom magnification x Objective lens magnification
Normal working distance for the standard configuration (1x objective lens) is 95 mm.
4.6 Video capturing (optional)
Two kinds of observation heads, binocular or trinocular, are available for the SZM series. They can all
be connected to cameras via an adaptor, for digital and analogical photo and video capturing.
Before taking a picture or filming video, pull out the light path selector lever so the light will be deflected
into the photo tube. At the same time, no light will enter into the right eyepiece tube for observation.
Please refer to the adaptor and camera manuals for further details.
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