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8-3-10 Place the specimen on the stage.
8-3-11 Bring the specimen into focus.
8-3-12 Adjust the brightness.
8-3-13 Adjust the interpupillary distance and diopter.
8-3-14 Engage the objective to be used in the light path and bring the specimen in
focus.
8-3-15 Adjust the aperture iris and field iris diaphragms.
8-3-16 Engage the required filters.
8-3-17 Adjust the brightness.
8-3-18 Start observation.