Optika Italy B-1000 MET Manuel D'instructions page 10

5.0 USING THE MICROSCOPE
5.3 Using the diaphgrams
The illuminator is provided with centrable field and aperture diaphgrams.
Field diaphgram can be used in order to adjust the area that is being illuminated by the incident
light. In this way possible stray light can be controlled.
Aperture diaphgram is used to adjust contrast and depth of field of the image.
FIELD DIAPHGRAM
KNOB
5.4 Incident darkfield
In order to enable the darkfield view of the sample, simply slide the front selector to „DF" position.
Note: when darkfield is enabled, keep both diaphgrams fully open.
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FIELD DIAPHGRAM
CENTRING SCREWS
Page 10
APERTURE
DIAPHGRAM
CENTRING SCREWS
APERTURE
DIAPHGRAM
KNOB