You will receive a paper copy of this manual in class to fill out and refer back to when you use the microscopes.  

1. Plug in the microscope and turn on the lamp.

2. Place the Low Power Objective Lens (the shortest) facing towards the stage

3. Place the slide on the stage and secure in place with stage clips.

4. Use the Coarse Adjustment Knob (large knob) to bring the slide into view then use the Fine Adjustment Knob (small knob) to make it clearer. 

5. Once you have the image in view, rotate the nosepiece to view it under different magnifications.

**Be careful if you want to use the highest power objective lens (the long one). If the stage is too close it might not fit and therefore scratch the lens!**

6. When done:

• turn off the lamp 

• place low power objective facing down  

• put the slide away

• wrap the cord  

• cover the microscope 

1. Make sure the cord is wrapped around the arm (and the end is tucked in) and that the low power objective is facing down. 

2. Place one hand on the arm, and the other hand on the base. 

3. Lift up and walk carefully. 

How to Calculate the Total 

Magnification:

Multiply the power of the eyepiece lens by the power of the objective lens. Our microscopes have an eyepiece lens magnification of 10x.

Low Power: 

10x (eyepiece lens) x 4x (low power objective)

= 40 times magnification

Medium Power: 

10x (eyepiece lens) x 10x (medium power objective)

= 100 times magnification

High Power:

10x (eyepiece lens) x 40x (high power objective)

= 400 times magnification