Lamp lighting and adjusting the brightness
Adjust the brightness using the brightness control knob
- Move the condenser aperture diaphragm lever to the furthest left and fully open the aperture diaphragm.
- Rotate the field diaphragm clockwise, and make adjustments.
- Press the light ON/OFF switch to turn on the lamp.
- Look into the eyepiece and turn the light intensity knob to adjust the brightness of the field of view.