These rules are for most light micrsocpes

  1. plug in the microscope and switch on the light
  2. lower the stage
  3. choose the lowest powered objective lens
  4. place the prepared specimen on the stage over the opening
  5. place hand on the focus wheel
  6. look through the eyepiece
  7. a circle of light should be visible
  8. use the focus wheel to move the stage closer to the lens
  9. keep moving the wheel slowly until the image you are seeing is very clear
  10. scientists usually make a sketch of what is visible at this magnification
  11. change to a higher powered objective lens
  12. repeat steps 5-10.......