Eyepiece graticules and stage micrometers are used to measure the actual sizes of cells and tissues when viewed using a light microscope. It is one of the techniques you are required to use in your practical work and so it can also appear in exam questions.

This Biology Factsheet:
Describes how to calibrate the eyepiece graticule using a stage micrometer.
Explains how the eyepiece graticule is used to measure the size of objects when viewed down a light microscope.
Looks at mistakes candidates make in examination questions on this topic.

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.PDF (pdf) 2.272 MB

Publication Date

September 2019


ISSN: 1351-5136

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371 Using Eyepiece Graticules and Stage Micrometers

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