1. Microscope Basics

2. Magnification ranges from
A. Eyepiece Ocular lens 10 X magnification
K. ARM
Used to SUPPORT the microscope when carried
Body Tube
Connects the eyepiece to the objectives.
B. Nosepiece
Holds the LOW, MEDIUM & HIGH power objective LENSES; can be rotated to change MAGNIFICATION.
J. COARSE ADJUSTMENT KNOB
Moves the stage up and down for FOCUSING
1st use this KNOB
C. OBJECTIVE LENSES
Magnification ranges from
4X to X to X
red yellow blue
10X4= X10= X40=400
I. FINE ADJUSTMENT KNOB
Moves the stage slightly to SHARPEN the image
2nd use this KNOB
D. STAGE CLIPS HOLD the slide in place
H. DIAPHRAGM Regulates the amount of LIGHT on the specimen
E. STAGE
Supports the SLIDE being viewed
F. LIGHT SOURCE Projects light UPWARDS through the diaphragm, the SPECIMEN, and the LENSES
G. BASE
Supports the MICROSCOPE

3. What happens as the power of magnification increases?
Power = 10 x 4 = 40
Power = 10 x 10 = 100
Power = 10 x 40 = 400