Chapter 3 Usage of Components
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3.4.8 Adjusting the NAMC Module
Before performing NAMC microscopy, adjust the orientation of the modulator of the NAMC objective, and
then adjust the position and the orientation of the NAMC module accordingly.
Image quality and adjustment of the modulator of the NAMC objective
NAMC objectives have a modulator with a dark
region and gray region pattern as shown on the right.
Contrast appears in the vertical direction (in the
direction of the arrow) in relation to the modulator's
pattern. Adjust the orientation of the modulator
according to the specimen.
Modulator adjustment
The modulator image can be observed using the
centering telescope. Turn the modulator ring and
adjust the orientation of the modulator so that contrast
can be seen in the required direction.
Operation:
Operation
Polarizing plate
Turn the modulator ring.
The orientation of the
modulator is changed.
Modulator image
Adjustment by turning the modulator ring
Be careful not to move the correction collar when turning the modulator ring. If the correction collar is
turned by mistake, adjust it by following the procedures in “3.10.1 Adjusting the Objective with the
Correction Collar.”
Objective pupil
Bright region (B)
Gray region (G)
Dark region (D)
Contrast direction
