: Turn the light on and check it is working., Place the specimen on the stage., Turn objective lens to lowest magnification and look at the specimen, Turn the coarse focusing wheel to focus the specimen, Turn the objective lens up a magnification and look at the specimen, Turn the fine focusing wheel to focus the speciment,

Rangliste

Visuel stil

Indstillinger

Skift skabelon

Gendan automatisk gemt: ?