Microscopy
Microscopes OPTIKA
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ENGLISH
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4.4 Adjust interpupillary distance
Hold the right and left parts of the observation head by both hands and adjust
the interpupillary distance by turning the two parts until one circle of light can
be seen.
4.5 Focus and diopter adjustment
Rotate the coarse focusing knob to bring the slide into focus using an objective
with a low magnification. Adjust the fine focusing knob to get the image sharp
and clear while observing with your right eye, then turn the dioptric adjustment
ring on the left eyepiece until a sharp and clear image can be observed also
with the other eye. Turn the tension-adjust-knob to get a suitable tension for
the focus system. When the image is in focus, turn the nosepiece to choose
the objective you need.
4.6 Condenser adjustment
Hold the notched ring at the base of the
condenser and rotate it up or down until
you reach a clear and uniform sample
illumination.
4.7 Set the numerical aperture
Adjust the aperture of the iris diaphragm to set the numerical aperture of the
illuminator, thus controlling image contrast and resolution.
4.8 Additional filters
The green glass filter can be inserted in the flip-out filter holder underneath the
condenser.
5 Maintenance
5.1 Microscopy environment
This microscope is recommended to be used in a clean, dry and shock free
environment with a temperature of 0-40°C and a maximum relative humidity of
85% (non condensing). Use a dehumidifier if needed.
Summary of Contents for B-190
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