What are the pros and cons of electron microscopy?

Pros: great resolution (up to 0.2nm), great magnification, TEM is able to show the insides of cells clearly, SEM allows surface structures to be seen clearly, high quality images can be generated. cons: expensive, large, affected by magnetic fields, preparation of material is extensive and requires expertise, preparation may distort the sample, only dead specimens can be visualised, only black/white images can be created.