OPTIKA MICROSCOPES B-500DK Manual De Instrucciones página 16

4.0 B-500DK DARKFIELD MICROSCOPE CONFIGURATION
If a crescent-shaped arc of light is observed, then the condenser is not properly aligned in center
of the microscope optical axis. Use the LED centering screws to fine align the condenser so that the
arc disappears or becomes a complete circle of light.
• Replace the eyepiece and focus the specimen, which should now appear brightly and evenly
illuminated upon a dark background.
Careful attention should always be given to microscope alignment, irrespective of whether the illumi-
nation mode is brightfield, darkfield, phase contrast or some other contrast enhancement technique.
Time spent in this endeavor will be repaid in excellent performance of the microscope both for rou-
tine observation and critical photomicrography.
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VIEW INSIDE THE TELESCOPE
WHEN THE LIGHT RING IS DARKE-
NED BY CLOSING THE OBJECTI-
VE'S IRIS