1. Make sure the manual light is on the Focus Control.
2. To focus the image, adjust the coarse buttons first. Note: The button that reads "FINE" on the SEM is actually a coarse up button. Click on the buttons to view animation.
3. To adjust the fine focus, rotate the fine focus knob shown above. Note: you may have to rotate the knob about three full rotations to view a change. Click on the green arrows to view animation.

PROCEED TO STIGMATOR

© 2003 Wartburg College Biology Department