1. Microscope
Parts and Functions

2. Ocular lens/Eyepiece
The lens through which you look; magnifies the object 10x (10 times its normal size)

3. Body tube
Maintains the correct distance between the ocular lens and the objective lens

4. Arm
Supports the body tube

5. Revolving Nosepiece
Holds the objectives and can be turned to change from one magnification to another

6. Low-power objective lens
Provides the least magnification; magnifies the object 4x (4 times its normal size)

7. High-power objective lens
Provides the most magnification; magnifies the object 40x (40 times its normal size)

8. Coarse adjustment knob
Moves the body tube up and down for focusing

9. Moves the body tube slightly to bring the image into sharper focus
Fine adjustment knob
Moves the body tube slightly to bring the image into sharper focus

10. Stage
Supports the slide

11. Stage clips
Hold the slide in place

12. Controls the amount of light coming through the stage
Diaphragm
Controls the amount of light coming through the stage

13. Provides light for viewing the slide
Light/Mirror
Provides light for viewing the slide

14. Supports the microscope
Base
Supports the microscope

15. Determining Total Magnification on the Microscope
The total magnification of the microscope is equal to the magnifications of two lenses multiplied together.
Eyepiece X Objective Lens = Total Magnification

16. Determining Total Magnification on the Microscope
Ex: Eyepiece (10x) X LP Obj. Lens (4x) =