Lamp lighting and adjusting the brightness
Adjust the brightness using the brightness control knob
![Adjust the brightness using the brightness control knob](../images/page/lamp/lamp-1.jpg)
- Press the light ON / OFF switch to turn on the lamp.
- Move the condenser aperture diaphragm lever to the left and fully open the aperture diaphragm.
- Look into the eyepiece and turn the brightness control knob to adjust the brightness of the field of view so that it is not dazzling.