Compound Microscope - introduction
Resolution
of a lens decreases (can see finer detail) as
Numerical Aperture
(
N.A.
) increases.
Magnification
(
power
) increases as
N.A.
increases.
Total
magnification
of a compound microscope =
eyepiece power
x
objective power
:
Eyepiece power
is usually 10X.
Objective power
:
lens
objective power
total power
N.A.
color
Scanning power
4X
40X
0.10
red
Low power
10X
100X
0.25
yellow
High power
40X
400X
0.65
blue
Immersion oil
100X
1000X
1.25
white
(do not use)
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