MshOt MF43-N, User Manual

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6
物镜视场外缘
数值孔径刻度
孔径光阑图像
4. Turn the height of the condenser and adjust the knob of the condenser to raise the
condenser to the highest level.
5. Rotate the field of view diaphragm adjusting ring along the direction of the arrow to
reduce the diaphragm.
6. Turn the coarse and fine focusing knob to focus the field aperture image.
7. Turn the two centering screws of the condenser to move the field aperture image to the
center of the field of view.
8. Rotate the adjustment ring of the field of view diaphragm to make the field of view
diaphragm connected to the field of view.
Note: do not screw the fixing screw of the condenser in the middle of the alignment knob
wrong
2-4 Adjustable aperture diaphragm
1. Rotate the adjusting ring of the numerical aperture of the condenser to make the
numerical aperture of the condenser equal to 70% - 80% of the numerical aperture of the
objective. According to the image, the aperture size can be adjusted to the position of
moderate image resolution and contrast.