COXEM EM-30PLUS - Focus Setting

Scanning Electron Microscope EM-30PLUS Operating Manual
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5.4.1 Focus Setting
 : After selecting button, you can find coarse focus fast in wide area by adjusting
focus large using mouse.
 : After selecting button, you can adjust the image in coarse focus more finely
and find the optimal focus using mouse
 : If you press button, you can find coarse focus automatically.
When setting focus to acquire clear images,
correct focus by adjusting coarse focus, fine focus, and Astig.
• When you set focus, it is easy to adjust focus by appointing an angulated part of the
specimen or the part whose contrast is distinct.
• Once exact focus is adjusted at high magnification, it is unnecessary to adjust focus
when you observe images at lower magnification. However, specimens can be
damaged when observed for a long time at high magnification.