1. Microscope Vocabulary Terms
Total Magnification
Field of View
Focal Plane
Magnify
Power
Inverted
Wet Mount

2. Total Magnification
Multiply the eyepiece magnification by the objective lens magnification.
Eyepiece = 10X
Low Power = 4X
Total Mag. = 10X * 4X = 40X
High Power = 10X & 40X
Therefore; 100X & 400X

3. Field of View d
d = 4mm 4X

4. Field of View 10X d d = 1.6mm Inverse Ratio:
10X is 2.5 times greater than 4X, therefore the Field of view is 2.5 times smaller than 4mm.
10X

5. Field of View d
d = ??mm
40X

6. Field of View d
d = .4mm
When multiplying/dividing by 10’s, just move the decimal.
Multiply moves to Right. Divide moves to Left.
40X

7. Focal Plane
The lens is designed to focus at one distance, from the end of the lens.
If the object is not at this distance – it is out of focus.
The focused distance is known as the Focal Plane.
Items that are above or below the Focal Plane are out of focus.

8. Magnify
Latin
Verb
To have the power of causing objects to appear larger than they are.

9. Power
Latin
Noun
Magnification

10. Inverted Latin – meaning to turn Verb
To reverse, to turn upside down, or inside out

11. Diagram of a ‘Wet-Mount’ Slide
2-3 Drops of water (if dry item)
Cover Slip
Item
Slide