• The target is observed from the top.
• Various targets including slides can be observed.
• Best-suited for observation in the middle-to-high magnification range.
• Lens magnification is changed with the revolver.
  (Magnification cannot be changed while continuously observing the target.)
• Relatively expensive ($10,000 to $30,000)
• Most types can be equipped with a camera. (An optional mounting attachment is required.)

Advantages of metallurgical microscopes

• They provide excellent resolution.
• Various filters are available; they provide a wide observation range.

Disadvantages of metallurgical microscopes

• They have an extremely shallow depth of field. A defective part may be overlooked.
• Because their observation distance is short, the target must be processed before it is set on the stage.
• Since they have many adjustment points, the user must be trained before using this type of microscope.
• The eye pieces cause fatigue.