Leica DM100 Manual De Usuario

7.  Look through the microscope and slowly 

rotate the fine adjustment knob, so that the 
specimen stage moves upwards until the 
specimen is in focus.

8.  If you are finished working with the oil 

immersion objective, clean the front side 
of the objective, the specimen slide, and all 
other surfaces that have come into contact 
with the oil, following the instructions in 
the "Care of the Microscope" section on 
page 34.