Introduction to the Microscope

1. Introduction to the Microscope Parts Care Focusing

2. Parts Eyepiece or Ocular lens BodyTube RevolvingNosepiece Arm ObjectiveLens Stage StageClips CoarseFocus Diaphragm FineFocus Light Base

3. Care Care • Always carry with 2 hands • Only use lens paper for cleaning the objectives and ocular lens • Do not force knobs to move

4. Care • Always store covered • cord wrapped around cover • low power objective clicked in place • light turned off • Keep objects clear of desk and cords

5. Focusing • Place the Slide on the Microscope • Use Stage Clips to secure slide to stage • Click Nosepiece so that the low power objective (4x) setting is over the slide • Look into the Eyepiece • Turn the Coarse Focus knob until the image becomes clear and not fuzzy • Use the Fine focus knob to make the image even more clear and sharp

6. Focusing • To increase in magnification turn the nosepiece so that medium objective (10x) is over the slide • Turn the Coarse and Fine adjustments until image is clear and sharp

7. Focusing • Then move on to the High objective (40x) • Do NOTuse the Coarse Focusing Knob • Use the Fine Focus Knob to bring the specimen into better focus

8. Ocular or eyepiece 10x Low power 4x Medium 10x High 40x Total magnification= Ocular x Objective Low____ Medium_____ High______ Magnifying Power

9. Draw specimens EXACTLY as you see them in the circular “field of view” Neatness matters! Labeling Drawing Specimens