How do we focus under the scanning power?

To focus under the scanning power of a microscope, start by placing the slide on the stage and securing it. Use the coarse focus knob to lower the stage while looking from the side until the objective lens is close to the slide, then slowly raise the stage until the specimen comes into view. Adjust the light intensity as needed and fine-tune focus with the coarse knob until the image is clear. Once focused, you can switch to higher magnifications as needed.