Types of microscopes and magnification

Compound Light microscope

2000x, 2D, uses light to illuminate a small slice of a specimen

Transmission Electron Microscope (TEM)

10 000X to 100 000X, 2D, use a beam of electrons to project image

Scanning Electron Microscope (SEM)

300 000X, 3D, beam of electrons swept over object

Confocal Laser Scanning Microscope (CLSM)

300 000X or more, series of 2D images stitched into a 3D image, allows you to view objects too thick to be viewed by compound light microscope

Scanning Tunnelling Microscope (STM)

greater than 300 000X, 3D computer image, metal probe is used to follow the contours of an object and make realistic 3D computerized image.

10X

low power lens in use, what is the magnification of the ocular lens?

10X

medium power lens in use, what is the magnification of the ocular lens?

high power lens in use, what is the magnification of the ocular lens?

10X

low power magnification of objective lens

4X

medium power magnification of objective lens

10X

high power magnification of objective lens

40X

Total magnification of low power objective lens

40X

Total magnification of medium power objective lens

100X

Total magnification of high power objective lens

400X

Field diameter of low power objective lens

4mm

Field diameter of medium power objective lens

1.61mm

Field diameter of high power objective lens

0.4mm