- 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)